Simplify. Your answer should contain only positive exponents. 6.) a²
—
3a³
7.) (-x –² y —5 • -2y⁰)–²
8.) (y⁰)² • -2xy⁴
9.) - 2x²

( -x² y⁴)–³
10.) (-2m²)–¹

(m⁵ n²)⁵
guys, please help me I need the answer because I will pass this tomorrow morning:(​

The tuition costs, c, for a local community college are modeled by c(h) = 250 + 200h, where h represents the number of credit hours taken. the local state university has tuition costs, s, modeled by the function s(h) = 300 + 180h. how many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

Elizabeth claims that the fourth root of 2 can be expressed as 2^m since (2^m)^n = 2. find the values of m and n for the case where elizabeth's claim is true.

An elevator travels 310 feet in 10 seconds. at that speed, how far can't his elevator travel in 12 seconds?