If x * y = 21 and x + y = 9 what is x and what is y?

If - 3 is multiplied by the sum of 5 and a number, the result is - 27. what is the number?

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar. What is the output of the function f (x) = x + 21 if the input is 4? When the input is 4, the output of f (x) = x + 21 is?

What is p in 3m+6p+5f=20.10

A 9-cut cheese pizza is 1,800 calories. How many calories in 2 slices?

iranda is conducting a poll to determine how many students would attend a students-only school dance if one was held.

Evan has $0.45 worth of pennies and nickels. He has a total of 21 pennies And Nickels All together. Determine the number of pennies in the number of nickels that Evan has.

A car burns 40% of the oil in its engine. The car contains 6000 mL of oil. How much oil does the car burn?

Compute the instantaneous rate of change of g (x) = x^2-1/4 at x=1

Scott needs to fill a 3-gallon pitcher with water, but it won't fit under the faucet. He fills a 1-quart container with water from the faucet and then pours the water into the pitcher.

What's another way to write 4 hundreds