Answer:
-3a-2b+3ab
Step-by-step explanation:
2a-5a
-4b+2b
7/10 because you add seven and three which equals ten, and seven of them are dimes.
Answer:
about 89.27 inches
Step-by-step explanation:
This is a right triangle question
c^2 = a^2 + b^2
c^2 = 15^2 + 88^2
c^2 = 225 + 7744
c^2 = 7969
Take the square root of both sides
c = 89.2692556259
c ≈ 89.27 inches
Nothing, it's just your foot. So if going to ask a question make it reasonable. OK?