Answer:
Step-by-step explanation:
h(g(2)) = h( 2²) = h(4) ; because g(x=2) = 2²
h(4) = 5*4+1 = 21
7/8 of an hour is 52.5 minutes. 3/10 of 52.5 minutes is 15.75 minutes. They spent 15.75 minutes warming up and cooling down.
Answer:
-6
Step-by-step explanation:
-6/b-50=-49
step1;collect like terms
-6/b=-49+50
-6/b=1
step2;cross multiply
-6/b=1
-6=1b(1b can also be regarded as b)
b=-6
Answer should be 1.85 x 10^18
Hello, please consider the following.

Let me know if you need further explanation.
Thank you