Answer:

Step-by-step explanation:
<u>Step 1: Multiply inside the parenthesis
</u>


<u>Step 2: Multiply
</u>
<u />


Answer: 
Answer:250
Step-by-step explanation:
Answer:
h=3in
Step-by-step explanation:
A=a+b
2h
Solving forh
h=2A
a+b=2·13.5
3+6=3in
5=4x+2x-7
5+7=6x
12=6x
12/6=6x/6
2=x