Circumference= diameter x pi
12x3.14 = 37.68
Answer:
Infinite number of solutions
Step-by-step explanation:

For any value of x, both equations are equal to each other because both sides are identical
Answer:
D) 5/8
Step-by-step explanation:
Since Susie has 5 books and 8 hair pins, you get 5:8 which can be transferred into a fraction of 5/8.