It would be 400+700h=1800
Use Keep, Change, Flip
Can I have brainliest!:)
Answer:
We first must solve for x

When we have x, we put it in to the second equation

Answer:
81.5, 9, 180
Step-by-step explanation:
28.
c=9
9x9=81
a=1/2
81+1/2=81.5
29.
9x1/2=4.5
4.5x2=9
30.
15x15=225
9x5=45
225-45=180
hope this helps!!!