ANSWER
$819.75
Step-by-step explanation
The amount that she earned doing odd jobs (which she put in the savings acount) is called the Principal.
The savings was compounded monthly at a rate, R, of 5% for 4 years and the amount in the account is $1,000.
The formula for quarterly compounded amount is:
where A = final amount of savings = $1000
P = prinicipal
R = rate = 5% = 0.05
t = number of years = 4
We need to solve for P. We have that:
Sasha earned $819.75 doing odd jobs.