The answer is 1.6
or 1 and 3/5
I believe you would have to divide 125 by 2 to get the miles per hour. I got 62.5mph I'm not sure if you need a proper rounded answer, but I think this is correct.
Answer:

Step-by-step explanation:
We want to simplify;

This can be rewritten as;

We multiply by the reciprocal of the second fraction to obtain;

We multiply to get;


I don’t know sorry mannnn
C = 2 x pi x r
divide each side by 2 x pie to get r by itself.
45/(2(3.14)) = r
r = 7.17