Combine like terms
9r+r=10r^2
7b+b=8b^2
10+10r^2+8b^2+4n
Just substitute x = 2 and y = 5 into the equation wherever you see x and y.
2 + (12 - 5x) · 2y
2 + (12 - 5(2)) · 2(5)
2 + (2) · 10
4 · 10
40, is the answer which should be the first box.
You got all of them correct!! Nice job :)
Answer:
i think it is b
Step-by-step explanation:
