His estimated answer would be 120 and for number 4 it would be a) 300 b) 700 and c) 1500 hope this helped. Mark as brainliest?
Answer:
the average rate of change is 4
Step-by-step explanation:
The first one is the answe<span>r.</span>
x 20
------ = -------
100 125
(The percentage x saved is equal to 20 out of 120) Cross multiply:
125x = 20(100)
125x = 2000
Divide both sides by 125
x = 16%