What does x2 + 2x = 2x + x2 demonstrate

In a fraction times fraction problem, do you multiply the denominator?

The base rate to rent a car is $75. Then, the customer is charged $2.00 per mile for each mile driven over 200 miles. Joel rented a car and drove 250 miles.

Hal has just purchased a small rectangular fish tank that holds 970.2 milliliters of water. The tank has a length of 14 cm and a height of 11 cm. What is the width of the fish tank? (1 milliliter is equal to 1 cubic centimeter)

What is the radius of the circle whose equation is x^2 + y^2 = 8

Cormac is making 29 phone calls each week as part of a fundraiser. Last week, he made 10 phone calls on weekdays. Which equation could be used to find x, the number of phone calls he made last week on weekend days?

A rental car agency charges a flat fee of $139.00 plus $30.00 per day to rent a certain car. Another agency charges a fee of $13.00 plus $51.00 per day to rent the same car. Find the number of days for which the costs are the same.

How to find the radius of square that tells you length, width, and height.

Ruben has two congruent wooden dowels. He cuts one dowel in two in order to have three pieces to make a triangle. Explain why, despite having three sides, Ruben will not be able to make a triangle with his three pieces.

If John has 13 more Apple than jake and Mary has 26 less that jake and all together they have 236 apples how many Apple does each person have

Which of the following is a perfect square? 65, 144, 68, 131