Answer:
-225
Step-by-step explanation:
Did the question mention what her current checking account balance was ?
Technically, none of the equations.
The equation you're looking for would be:
x²+(x+20)²=150²
First find the amount at the end of the deferment period using the formula of the future value of a compound interest
A=8,960×(1+0.2735÷12)^(6)
A=10,257.25
Use the amount we found as the present value to find the monthly payment by using the formula of the present value of an annuity ordinary to get
PMT=10,257.25÷((1−(1+0.2735
÷12)^(−12×6))÷(0.2735÷12))
=291.27 ....Answer
