Answer:
C I think.
Step-by-step explanation:
I don't know for sure, but A, B and D all talk about adding or subtracting the answers together, while C tells us to find the fraction of a fraction so I'm pretty sure you multiply. Hope this helps!
7(2x+3)
=14x+21 hope it helps
3/4 is the slope and it represents the distance over the time, or the miles per minute.