Answer:
8 ft^2
Step-by-step explanation:

area of ABC is:

area of ABC is 18 square ft, then

now you can find h1 and the area for EFG
Answer: (6, -1)
Step-by-step explanation:
Plug each pair in:
3(6)+7(-1)=11
11=11
True, so the first pair works.
Answer:
x= 42
Step-by-step explanation:
x/2+9=30
x+18=60
x=60-18
x= 42