How do you write -84. 72 as a fraction repeating 72

.72

Step-by-step explanatio

let x=0.727272

100x=72.727272

so

100x-x=72   The rest cancels out

99x=72

x=72/99  

part 1 answer = 8

part 2 answer = 72

step-by-step explanation:

part 1 explanation = add all of the numbers, then divide by how many numbers you have. so, 200/25 = 8.

part 2 explanation = not gonna lie, this is hard to explain, so just google how to do it.

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50