How is math used in recycling?

Jacks average in math for the first nine weeks was an 88. His second nine weeks average decreased 12.5% what was his average for the second nine weeks

How many bottles of water equal 1 gallon? i was told to drink 1 gallon of water everyday to get in shape and i dont know how many bottles tht is and is tht a good idea? How many bottles of water equal 1 gallon?

What is 5x^2 times 6

The local school bought $1464 worth of notebooks for its students. if the notebooks cost 1.22 each how many notebooks door the school buy

A coffee shop orders at most $3,500 worth of coffee and tea. The shop needs to make a profit of at least $1,900 on the order.

Karen has n decks of cards. each deck has 52 cards in it. using n, write an expression for the total number of cards karen has.

What is the surface area of a cone with a lateral surface area of 25 square inches and a base diameter of 4 inches? (Use 3.14 as an approximation for π.)

Write an equation to solve this problem: Twenty-four is 25 percent of what number? Find the answer.

Can anyone simplify this equation? 8^2+9 (12:3*2) - 7

flora is 43 feet underground touring a cavern. She climbs a ladder up 14 feet. What is her new location