4a - 3 - 2a
3 - 2a + 7

I’m still confused on how to work the percentages

Yvaries inversely as x. y =12 when x=5. find y when x=4

Consider this expression and the steps to evaluate it. 4^5(−2)^9/4^8(−2)^3 1. apply the quotient of powers:      (−2)^a/4^b 2. evaluate powers:           c/d select the value of each variable. a = _ b = _ c = _ d = _