A twelve-pack of 2020-ounce water bottles sells for $4.78$4.78. The expression 20w20w represents the amount of water in a number of bottles. What does the variable ww represent?

A broken pipe was leaking water at the rate of 2gal every 5 minutes. it took 23 min to stop the leak. how many gallons of water were wasted?

There are 6 class periods in the school day. There are 10 subjects to choose from. How many different class schedules are possible?

4. Write a number story to show 917 + 67 =. Solve the problem.

Aristotle was born in 384 BC. Ron Howard was born in 1952 A. D. how many years apart were they born?

Michael started with 30 baseball cards and gave away x number of cards. Johnny started with 40 baseball cards and gave away twice as many as Michael did. How many cards did Michael give away if they had the same number of cards left?

A swimming pools large drain will empty a pool in 3 hours while its smaller drain takes 6 hours. If both drains are open how long will it take to empty the pool? A: 4 1/2 hours B: 2 hours C: 9 hours D: 4 hours

A pair of jeans cost x dollars and is subject to a 7% sales tax. Using only one step which of the following expressions could be used to font the cost of the pair of jeans in dollars?

Explain in your own words why (x+y) 2=x2+y2. provide a numerical example to illustrate

Grace read 4 days this week. She read 10 minutes each day. If her teacher wants her to read it a total of 60 minutes, how many more minutes does Grace need to still read?

How many terms are in the expression 1/2 - 18y + 9z - 2