Find the rate of change
Pls help thx

Rewrite the following without an exponent. (5/8)-1

Consider the function f(x)=-5x+3 what is f(-2)

Julie goes to the sports store and spends $40.50 before tax. she buys a pair of shorts for $21.75 and 3 pairs of socks that each cost the same amount. how much does each pair of socks cost? $$