Find the values of x and 2x

Marcus and cody both leave the park at the same time, but in opposite directions. if cody travels 6 mph faster than marcus and after 4 hours they are 64 miles apart, how fast is each traveling? solve using rare times time = distance.

Write two point-slope equations for the line passing through the points (6, 5) and (3, 1)

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x