Answer:
It is a function because the x values don't repeat
Step-by-step explanation:
Do cross multiplication
<u>6</u> = <u>x</u>
18 12
Now cross multiply
(6)(12) = (18)(x)
72 = 18x
Divide both sides by 18
<u>72</u> = <u>18x</u>
18 18
4 = x
So tMei can complete 4 problems in 12 minutes.
I believe 24 months because by then you will have accumulated $720 hope it helps
