Eli whitney introduced interchangeable parts in the manufacture of muskets. which of these was an effect of his innovation?
a: the use of interchangeable parts encouraged the end of slavery.
b: the use of interchangeable parts was applied to other industries.
c: whitney’s invention proved ineffective in dividing labor among unskilled workers.
d: although using interchangeable parts enabled the mass production of identical weapons, it proved unable to lower costs in other industries
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an expansion is one of two basic business cycle phases; the other is contraction. the transition from expansion to contraction is a peak, and the changeover from contraction to expansion is a trough.

the correct answer is to reduce tax

basic principles: federalism, separation of powers, checks and balances, judicial review, representative democracy, limited government, rule of law, individual rights and responsibilities, consent of the governed, majority rule, popular sovereignty, equal protection.

the  wilmot proviso  was designed to eliminate  slavery  within the  landacquired as a result of the mexican war (1846-48). fearing the addition of a pro-slave territory, pennsylvania congressman david  wilmot proposedhis amendment to the bill.