The average of 5, 10, 15, and z is 20. What is z?

Seven times a number subtracted from 12 is 28 in a expression

A pack of paper cost $3.75 including tax. Mr. cooper wants to purchase packs of paper for his class and has a $20 budget. write an inequality to solve for the number of packs Mr. Cooper can purchase with his budget

Expand the expression using the Binomial Theorem and Pascal's Triangle: (3x-1) ^3

42 is 7.5% of what number?

A brand new filled can of chicken broth is 10 cm tall and has a radius of 10 cm. Mishka uses some of the broth to cook and now the broth left in the can is 6cm high. How much broth did Mishka use?

A barrel of water is full. It decreases by 85%. Now it has 120 liters of water. How much liters of water did it have to begin with?

What is word form for 12.38

Don has a bag that weighs 2 oz, and Jamie has a bag that weighs 1 oz. Don put some marbles in his bag each weighing 9.4 oz, and Jamie put the same number of marbles in her bag each weighing 11.2 oz. Let m represent the number of marbles in each bag.

Decimals between 10 and 15 with an interval of. 75 between each pair of decimals

A playground area is circular with a diameter of 32 feet. what is the area and circumference of the playground?