Answer:
For 4 years the money was in the account .
Step-by-step explanation:
Formula

As given
Bonita deposited 1300 into a bank account that earned 5.75% simple interest each year.
She earned $299 in interest before closing the account.
Principle = $1300
Rate = 5.75%
Simple interest = $299
Putting all the values in the formula




Time = 4 years
Therefore for 4 years the money was in the account .
Its 13 cause 26 times.5 is 13
Each side is equal its in the name. hope this help!!
For this case we must solve a system of two equations with two unknowns, given by "x" and "y".
We have:

We multiply (2) by -1:

We add (1) and (3):

Clearing x:

We substitute
in (2)

Thus, the solution of the system is 
Answer:
The solution of the system is 