A long distant runner started on a coarse at an average speed of 9 mph. Half an hour later, a second runner began the same course at an average speed of 12 mph. How long after the second runner starts will the second runner overtake the first runner?

umm im not really sure because i never had to do this

step-by-step explanation:

false

inverse variation is not exponential

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