The circumference of a circle is 7π in. Find its radius, in inches.

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 ?

On #16 : explain how factoring a trinomial, ax^2+ bx+ c, when a does not equal 1 different from factoring a trinomial when a = 1.

700 miles the train takes 5 hours to a travel the distance at what unit rate is the train traveling?