Fourteen years ago, Sid was three times as old as Imogene
Two years ago, Sid was twice
Imogene's age. How old will
Sid be in five years?

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expression 4s+9s represents the total number of items that will be displayed on s shelves. simplify the expression

Find the area of a parallelogram with base 15 yards and height 21 2/3

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?