Simplify each of the expressions by combining like terms.

2x-4x+7x+3

I have 4 times the homework than my brother. I have 9 more sheets than him. How many sheets of homework do we have altogether?

A bottling company makes decorative bottles and ships them to their customers. Each bottle has a height of 13 inches and a radius of 2.5 inches.

If allie has five melons and jess take two away how many melons does josh have?

How far did you drive if you drove 2 hours at 55 miles per hour and 3 hours at 60 miles per hour?

A 4.5-foot-long table and a 127-centimeter-long table side by side to form one long table. What is the combined length of the two tables in inches?

on Saturday afternoon, six friends agreed to call each other. each friend talked to every other friend once. how many phone calls were made?

A woman with a basket of eggs finds that if she removes either 2, 3, 4, 5, or 6 at a time from the basket, there is always one egg left over. if she removes 7 eggs at a time from the basket, there are no eggs left over.

1. Does the table below show a proportional relationship? If so, what is the constant of proportionality? x y 1 6 2 7 3 8 5 10

Peter has decided to save $30 each week to buy a new stereo system. Write a direct variation equation for the amount of money, m, that Peter has saved in, w, weeks.

Solve the equation |k+6| = 3