Explain how to find 40 times 80 using mental math

The time it takes a spinner to stop completely is 12 seconds. If the spinner completes 6 revolutions in this time, what was the average angular velocity of the spinner, in radians per second, for the 12-second interval?

Uma wants to buy a video game system for $400. She has $50 and is saving $25 each week. Solve the equation 25w + 50 = 400 to find how many weeks w it will take Uma to save enough to buy the system.

Jean adds 35 and 9. How can she solve using only equations to model her thinking?

A carton in the shape of a cube measuring 8 in. tall is filled with colored plastic cubes measuring 1 in. across each face. The cubes sell for 25 cents each. How much would it cost to buy all of the cubes in the carton? Enter your answer in the box.

During June a car dealer sold 250 cars during July he sold 14% fewer cars how many cars did he sell in July?

Use full sentences to describe why the product of x^3 and x^7 is x^10

What is the domain? y = - 3x2+4x-6

60 customers per hour arrive randomly (i. e., cva = 1) and randomly join one of 6 unpooled queues. each of the six employees can handle exactly 15 customer requests per hour (i. e., no variability).

Maghan works at an ice cream truck and makes $8.25 per hour. lucas works for a ladscape and makes $6.50 per hour. how much more does meghan make each hour?

A triangle has height 15in. and area 120in squared. what is the length of its base?