Answer: 30,000 months or 2,500 years
She'd better start saving more haha.
Step-by-step explanation:


Answer:
<u>18</u>
Step-by-step explanation:
<em>replace a with -2</em>
-4(-2) + 10
<em>multiply the -4 and the -2, the negatives cancel out and leave you with 8</em>
8 +10
<em>just add</em>
18
When it is in () it means multiply x=45
Answer:
f(9) =21
Step-by-step explanation:
I will assume you want to find f(9) when x=9
Let x=9
f(9) = 2(9) +3
= 18+3
=21
f(9) =21