(a) boris runs 4 miles in 38 minutes. how many miles does he run per minute?
(b) at garcia's bike rentals, it costs $22 to rent a bike for 5 hours. how many dollars does it cost per hour of bike use?
if necessary, round your answers to the nearest hundredth.

i need more info. are you looked to see there mph? how much they deliver? how far they go?

step-by-step explanation:

f(x) is   are being squared

g(x) is   increasing by 2

h(x) is adding .25 each time

k(x) is taking the square root

f(x) and k(x) are exponential functions