Find the circumference of the circle. round your answer to the nearest centimeter.
a) 8 cm
b) 16 cm
c) 79 cm
d) 157 cm

What is the value of x in the following equation? -3x-2=2x+8

Acyclist bike x distance at 10 miles per hour .and returns over the same path at 8 miles per hour.what is the cyclist average rate for the round trip in miles per hour ?

How do i take any fraction and make it into a decimal or percentage?