Answer:
r = 4.908
Step-by-step explanation:
V = 885
height (given in the picture) = 11.7
V =
h
V = (3.14)(
)(h)
885 = (3.14)(
)(11.7)
885/3.14/11.7 = 
Take the square root and you get 4.908.
The rate of change is -$45, and it represents the amount of money withdrawn each month.
We can find the rate of change by finding the change in y/change in x:
145-190/1-0 = -45/1 = -45
This would be the amount of money he withdraws from his account each month.
Let be x=5, so y=100= 5² *4=5²*2²=100
so if x=6, so y=6²*2²=36*4=144
the answer is <span>y = 144</span>