What is the length of the hypotenuse x if 20,21 is a Pythagorean triple

Shondra bought a spool of ribbon. She uses 30 inches of the ribbon to decorate each gift box. She decorated 7 gift boxes in all. What number describes the change in length of ribbon on the spool?

An arc on a circle measures 125°. The measure of the central angle, in radians, is within which range?

A shipping container is in the shape of a right rectangular prism with a length of 10 feet, a width of 1.5 feet, and a height of 2.5 feet. the container is completely filled with contents that weigh, on average, 0.64 pound per cubic foot.

Solve the equation for x 2x+34=4 (x+5)

Round 76 to the nearest tenth

Marta is making two different charms for necklace one charm has a 1 cm diameter and a 3.14 centimeter circumference A similar charm has a diameter of 4 cm what is the circumference

What is (4.5•10^4) ^2 in scientific notation?

Simplify the equation 8x+14+14x.

0.0047*63.4 using long multiplication

A room measures 12 feet by 15 feet how many square yards of vinyl floor covering will it take to cover the floor