Which of the following is the solution to the equation 25(z + 2) = 125? z = 5.5 z = 3.5 z = −2.5 z = −0.5

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

Mr.walker is looking at the fundraiser totals for the last five years , how does the mean of the totals compare to the median?

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.