Solve this system using substitution x+5y=-32 y=3x

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)

Aefg - almn. find the ratio of aefg to almn. a)1: 4 b)1: 2 c)2.1 d)4: 1

You buy five cds at a sale for $5.95 each. write an expression for the total cost of the cds. then use the distributive property and mental math to evaluate the expression.