Review Expressions

Jenna has $235 in savings. She is able to save $25 per week. If she wants at least $400 in her savings. If w is the number of weeks, express this situation in an inequality.

• 235w+25<400

• 235w+25>400

• 235+25w≥400

• 235+25w≤400

Choose an expression that is equivalent to the following
6n + 2(3 - 5n)

• n + 6

• 6 - 4n

• 16n + 6

4 more than twice a number

• 2x + 4

• 2 + x + 4

• 2x - 4

• 2/x + 4

x + x + x + x

• x⁴

• x

• 4x

• x₄

Values for the variables, A, B, and C are graphed on the number line shown. Choose all the true statements below.

• A+B is a negative number.

• B+C is equal to zero.

• A+C is a positive number.

• A-B is a negative number.

One difference between equations and expressions would be...

• you solve both of them using inverse operations.

• you flip the symbol when you multiply or divide by a negative

• equations have an equals because they show two equal expressions. Expresions have terms and operations.

• 8(-9+3x-4y)

• 12(-6+2x-3y)

• 12(6-2x+4y)

• 9(-8+15x-4y)

• -22y+30x

• 22y+30x

• 2y+30x

• -2y-30x

Which expressions can be used to represent the perimeter (p) and the area (a) of the rectangle below?

• p=20m+24 a=12m+15

• p=6m+24 a =10m+12

• p=3m+12 a=21m+35

• p=6m+24 a=21m+35

• 9t+12.50

• 324t+450

• 48t+69

• 6t+6