Answer:
a. 
b .$914.85
Step-by-step explanation:
Step one:
given data
principal p=$750
rate= 5%= 0.05
for quarterly compounding n=4
a. the function that represents the balance after t years.

A = final amount
P = initial principal balance
r = interest rate
n = number of times interest applied per time period
t = number of time periods elapsed
b. when t=4

A= $914.85
Y=200+50x and x is how many months
I believe it is B. I could be wrong but I am hoping that you get it right
Answer:
2x + 8y
Step-by-step explanation:
5x + 5y - 3x + 3y
5x - 3x + 5y + 3y
2x + 8y