Factor the following polynomial completely.

-x2 y2 + x4 + 4y 2 - 4x2

How tall is a cherry?

The ages of john and carl add up to 28 years total. John is 20 years older than carl. How many years old is carl?

Which formula is used to determine the total number of square feet in a room?

The big dog weighs 5 times as much as the little dog. The little dog weighs 25% as much as the medium sized dog. The medium sized dog weighs 12 pounds more than the little dog. How much does the big dog weigh?

Suppose that you have just graduated with $30,000 in student loan debt, at 9% annual interest, compounded monthly. You must make a payment at the end of each month, and willbe finished paying off the loan at the end of 10 years. a.

64 miles an hour converted to ft per second

A cricket chirps 40 times a minute when the temperature is 50 degrees. write an equation representing the temperature in terms of number of chirps per minute

Is 6/8 is greater than or less than 2/3

How much greater is 113,998 than 97,813

Molly purchased 7 apples for $3.96. while looking at her receipt, Molly divided three $3.96 by 7. why might Molly perform this calculation?