This really depends on the fraction; if there are variables in the equation, if they are full numbers,etc. I'd really recommend looking up khan academy on YouTube and that will really help you out!
Answer:
C = 31.4 inches
Step-by-step explanation:
The circumference of a circle is found by
C = pi *d
C =3.14 * 10
C = 31.4 inches
The answer to you question is B for number 1 and for 2 it is C. Hope this helps
I believe that the answer would be B) y = x + 19
Answer: 12-5d
because all you do is flip the expression