Solve equations

50=7y-6

t/4-3=9

Decide whether the number is a solution of the equation Is 5 a solution of 4f=25-f

3x2 + 11x-42 How to factor this

If f (x) = - 5x + 1 and g (x) = x^3, what is (g°f) (0) ?

Adam is 20 years younger than Brian. In two years Brian will be twice as old as Adam. How old are they now?

Which of the following expressions represents a function? a. x2 y2 = 9 b. { (4, 2), (4, - 2), (9, 3), (9, - 3) } c. x = 4 d. 2x y = 5

Steven, Lisa and Mark want to buy a pizza. Steven said he could pay twice as much as Lisa. Mark said he could pay the remaining $3, which is $1 less than Lisa's share. How much does the pizza cost

Which of these pairs of variables would you expect to be represented by a scatterplot with a negative correlation? A. a person's height and the person's grade on the math test B. the depth of the water in a pond and the amount of rainfall C.

Convert the annual rate of 2% to a quarterly rate

How to find a rule with multiplication or division

Round 3.687 to the nearest hundreds.