Answer:
D
Step-by-step explanation:
The function
has value F(2) when x = 2 is substituted.

Answer:
450 minutes
Step-by-step explanation:
15 + 0.1x = 60
15 - 15 + 0.1x = 60 - 15
0.1x = 45

x = 450
The reciprocal of a fraction is your fraction flipped and you should be able to multiply a fraction by it's reciprocal to get 1 all numbers and their reciprocals equal 1.
The answer is definitely A. Hope this helps!