Average rate of change is defined by (y^-y)/(t^-t) where the ^ means the final(so final y and final t)
So you'd do (8.75-2.75)/(12-4) which is 6/8 which is 3/4 of a dollar per week
The answer is 7.5 or 15/2
Answer:
D
Step-by-step explanation:
sum of ratio=2+3=5
Mpho gets=3/5×20=12