Which is a simplified form of the expression 2c + 2 + 6c – 4?
a. 8c + 2
b. 8c – 2
c. 4c + 6
d. 4c – 2

The inside wheels of a car traveling on a circular path are rotating half as fast as the outside wheels. the front two wheels are six feet apart. what is the number of feet in the path traced by the inside front wheel in one trip around the circle? express your answer in the form "k \pi", where k is an integer.

Find the value of the variable and the length of each secant segment.

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?