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Judicial review is the power of courts—especially the U.S. Supreme Court—to interpret the Constitution and invalidate laws or government actions that conflict with it (established in Marbury v. Madison, 1803). Option C directly states the Court overturning a state law as unconstitutional, which is quintessential judicial review. Option A describes legislative power of the purse. Option B is an executive appointment power. Option D concerns executive functions at the state level. On the GED, tie government actions to constitutional roles: legislative (make/fund laws), executive (enforce/appoint), judicial (interpret/review). If a scenario involves declaring actions unconstitutional, it belongs to the judiciary. Recognizing this mapping helps quickly eliminate distractors and reinforces understanding of checks and balances—courts can check legislatures and executives by striking unconstitutional measures, while legislatures can respond with new laws or constitutional amendments.

Newton’s First Law states an object in motion stays in motion unless acted on by an outside force. A rolling ball slows because friction with the ground and air resistance oppose motion. Option C is correct. Option A (inertia) explains continued motion, not stopping. Option B (gravity) pulls vertically, not slowing horizontal motion directly. Option D reflects Aristotle’s outdated view. GED Science often tests forces in motion. Strategy: always identify resistive forces (friction, drag) as reasons for slowing.

Semicolons join two closely related independent clauses without a conjunction. Option C is correct. Option A is incorrect—semicolon + conjunction is redundant. Option B is a comma splice. Option D misuses semicolon with a coordinating conjunction. On GED grammar, use semicolons for equal independent clauses or before conjunctive adverbs (however, therefore).

Divide coefficients: 24 ÷ 6 = 4. For exponents, apply the quotient rule: x3÷x1=x3−1=x2x^3 ÷ x^1 = x^{3−1} = x^2. So the result is 4x² (Option A). Option B keeps the exponent 3 instead of subtracting. Option C uses the wrong coefficient. Option D keeps both the wrong coefficient and exponent. GED algebra emphasizes rules:

•When dividing like bases, subtract exponents (aᵐ ÷ aⁿ = aᵐ⁻ⁿ).

•Always reduce coefficients separately.

Check by expansion: numerator 24x³ = 24·x·x·x; denominator 6x = 6·x. Cancel common factor (6x), leaving 4x². Reconfirm with substitution: let x=2 → original = 24(8)/12 = 192/12 = 16; simplified = 4(4) = 16. Consistency confirms correctness.

The GED Social Studies test reviews federalism—the division of powers between federal and state governments. The Constitution enumerates certain federal powers (e.g., coining money, declaring war, regulating interstate commerce). Powers not delegated to the United States nor prohibited to the states are reserved to the states or the people (Tenth Amendment). Public education policy and administration have historically been state and local responsibilities, making Option C correct. Option A (coining money) and Option D (declaring war) are explicit federal powers. Option B (interstate commerce) is likewise a federal authority via the Commerce Clause. Recognizing which level of government handles a function helps answer civics questions quickly. Tip: National = war, currency, immigration, interstate trade. States/localities = education, policing, local elections, professional licensing (unless preempted). When in doubt, ask whether uniform national control is required (federal) or whether local variation is typical (state/local).