Keystone Review Algebraic Expressions

If x represents an even number, which expression represents an odd number?

• 3x

Which expression represents the number of cents in "d" dimes and "n" nickels?

• d+n

• 15(d+n)

• 10d+5n

If n+7 represents an even number, the next larger even number is represented by

• n+8

• n+9

• 10n+7

• 2n+7

Maria is twice as old as Sue. If x represents Sue's age, which expression represents how old Maria will be in three years?

• 2x

• x+3

• 2x+3

If x represents the smallest of three consecutive odd integers, then the largest would be represented by

• x+2

• x+3

• x+4

• x+5

When x = 2 and y = 3, which expression has the smallest value?