Answer:
we know that, 1miles/hour = 0.45m/s
or, 1meters/second = 1/0.45
1m/s = 2.22222222222
Step-by-step explanation:
Then,
72.0 meters/second = 72.0*2.22222222222
=160 miles per hour.
3*-6-2*-11=14
-18+22=14
22=14+18
10
2(3(7)-1)
= 2(21-1)
=2(20)
=40