Answer:

Step-by-step explanation:


<u>------------------------</u>
<u>OAmalOHopeO</u>
<u>-----------------------</u>
3.5(2h+4.5)=57.75
7h+15.75=57.75
7h=57.75-15.75
7h=42
h=42/7
h=6
Answer:
The answer is D
Step-by-step explanation:
First off, the opposite of +3 is -30
Next, the opposite of 15c-30 is
