187 ft/s. I think that this might be an equation, but if it is not, I'm sorry.
Step-by-step explanation:

Answer:
288
Step-by-step explanation:
0.40hrs × 720 calories = 288 calories burned
X + (x + 1) + (x + 2) = 126
3x = 123
x = 41
So the sides are 41, 42 and 43
the answer would be
because you would need to find the LCD, which in this case would be 56 and you solve from there.