I would add them together to get 73
Step-wise I would add the ones column together to get 13, carry the one over then add the tens up to get 70 - your answer is 73
225 miles / 45 miles/hr = 5hr
Answer:
b^2-c^2-10b+10c
Step-by-step explanation:
b^2-c^2-10(b-c)
b^2-c^2-10b+10c