Given the following exponential function, identify whether the change represents growth or decay, and determine the percentage rate of increase or decrease.
y = 520(1.063)

According to statistics a person will devote 32 years to sleeping and watching tv. the number of years sleeping will exceed the number of years watching tv by 18. over a lifetime, how many years will the person spend on each of these activities

Tom drove 206 miles in 3.9 hours. estimate his average speed.

Simplify the algebraic expression 8y-2(y+4)