Answer: B. 
Step-by-step explanation:
The formula to find the compound amount (compounded yearly):-
, where P is the principal amount invested, is the rate of interest and t is time period.
As per given , we have
P=$5500 , r=5% = 0.05 and A = $7,739.05.
Substitute all the values in the formula , we get


Hence, the equation describes Meredith's investment based on t, the number of years she kept the account open : 
Put 22.5% in a equivalent fraction 225/1000 reduce to 9/40
Answer:
m=3
x=11/2
x=1/2,x=-3/10
Hey if you wanna see step please msg me
try to solve by your self next time!!!!!!!