When she first purchased it, Soledad's computer had 400 GB of hard drive space. After six months, there were only 313 GB available. Write and solve an equation to find the amount of hard drive space that Soledad used in the first six months.

A high-performance composite flywheel rotor can spin anywhere between 30,000 and 100,000 revolutions per minute. What is the range of degrees through which the composite flywheel can travel in a minute? Write your answer in scientific notation

30,944 rounded to the nearest ten thousand. use the number line to show your work.

Quadrilateral PQRS has vertices P (-3, 2), Q (-1, 4), and R (5, 0). For each of the given coordinates of vertex S, determine whether the quadrilateral is a parallelogram, a trapezoid that is not a parallelogram, or neither.

What is 2 cubed?

After a meal costing $12.50, you decide to tip the waiter 15%. How much will you tip the waiter?

Julius went on a volunteer trip to Central America and took medical supplies with him. He packed a bag with 50 pounds of supplies.

What is the unit rate for 644.8 ft in 31 s? Enter your answer, as a decimal, in the box

Solve 1/4 + 3/5 - 3/10

Add or subtract (7x^2-x-2) - (-6x^3+3)

What is the estimated value of the length of a square with an area of 200 square inches? 10.5 inches 12.1 inches 14.1 inches 25 inches 100 inches