Simplify the expression.

7y + 4 + 9 - 2y PLEASE HELP ME MY LIFE DEPENDS ON IT

What kind of bond pays interest which is exempt from tax?

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

Give the functions f(x) = |x + 2| - 3, what is the domain? a,b,c, or d all real numbers x > 2 x < -2 all real numbers and x cannot equal to 2