Answer:
3
Step-by-step explanation:
Answer:
You can Ask nicely about that,
we are not doing your homework for you.
if you have question, put it on the question.
not giving us a doc.
We do not want anything returned
Thankyou
Answer:
what's the question? I don't know

Let's solve ~




Hence, the correct choice is D
Answer:
0.12 x (x + 3000) = 4200
equation for her salary last year : last year's salary = (4200 / 0.12) - 3000
$32,000
Step-by-step explanation:
Let x = last year's salary
this year's salary = 3000 + x
this equation can be used to determine how much she saved this year = 0.12 x (x + 3000) = 4200
to find last year's salary, make x the subject of the formula
4200 / 0.12 - 3000 = x
x = $32,000