If a-b=10 and a+b=31 what is the value of 3a-2b

If you add divide 28 by 78 and add 89 and then divide your answer and then subract 10?

What is the factored form of x2-x-2

Jake earns $7.50 per hour working at a local car wash. The function, ƒ (x) = 7.50x, relates the amount Jake earns to the number of hours he works. Write the inverse of this relation.

You buy a movie for 19.99 and a set of earphones for 12.49 how much is the bill before taxes

Sloane needs 3/4 hour to drive to her grandmother's house. It takes her 5 times as long to drive to her cousin's house. How long does it take to drive to her cousin's house?

Given f (x) = -8x+1 find f (5)

How do I make a girl happy, cause i feel like i have places where i can improve?

What is 10 squared by63

Two friends are making friendship bracelets each bracelet has five star beads and 3/5 of the Stars beads are glow-in-the-dark if the friends are making 10 friendship bracelets how many Star beads do they need how many stars will glow in the dark?

Simplify: (3w^-6) ^-3