The answer is $81.25. Because you take the equation x times .8 = 65 and solve for x.
Answer:
Young boy will grow to height 132 cm in 12 months.
Step-by-step explanation:
Given:
Growing rate = 3.5 cm per month
Current height = 90 cm
Let the number of months be x
Required height = 132 cm
We need to find the number of months required to grow the height till 132 cm.
Hence Number of months required can be calculate by subtracting Required height with Current height and then dividing it with growing rate.
Framing the above statement in equation form we get;

Hence Young boy will grow to height 132 cm in 12 months.
Answer:
The value of the car will be 6100 dollars in 8.8 years
Step-by-step explanation:
Present value of car = $23900
The value of the car depreciates at 14.25% per year
Let x be no. of years in which the value of the car becomes 6100 dollars
Formula: 
Substitute the values :

Hence the value of the car will be 6100 dollars in 8.8 years
M= -3 B= -2
Non-proportional
Negative slope