If x + 2y = 8 and x is twice the value of y, what is x - y?

Find the inverse of f (x) = - 2 (x+3) ^2 - 1

A dvd movie originally cost $24.99 its current price is $19.99 what is the percentof the rounded to nearest percent

Credit card A has an APR of 15.8% and an annual fee of $72, while credit card b has an Apr of 19.6% and no annual fee.

Brian Smith sells sets of movie posters ($12) and baseball cards ($8) at a local flea market. On last Sunday, Brian's total sales were $840. People bought four times as many movie posters as baseball cards.

432 divided by the different between 279 and 63

An ivy contains 5 mg of drug per ml and the patient needs to receive 100mg per hour what is the infusion in ml/hr

For f (x) = 3x+1 and g (x) = x^2 - 6 find (f-g) (x)

If their are 19 girls and 15 boys in class. What is the ratio to boys to girl if 3 girls go to the bathroom

Ava needs to divide 378 guppies into 3 groups. How many guppies will be in each group?

Jose is thinking of a number. The number is not odd. The sum of the digits is divisible by 2. The number is a multiple of 11. It is greater than 5 times 4. It is a multiple of 6 It is less than 7 times 8 + 23 What is the number?