Yes: example-because if u are running u are using energy
Answer:

Step-by-step explanation:


Answer:
71°
Step-by-step explanation:
31-3x+19x-5=90
16x=90-26
16x=64
x=4
m<R=19x-5 = 19(4)-5 = 76-5 = 71
Answer:(3x+7)(x+2)
Step-by-step explanation:
It would be 6 because the other short side is 6 so it should be 6 units