6.EE.2c Evaluate expressions given a value for the variable

Evaluate the expression s² when s = 3.2

10.24

Evaluate the expression 5(n+3) - 7n when n = 1/2

14

Evaluate the expression 18 ÷ b + 3b if b = 2

15

Evaluate the expression (x + y)² + z, when x = 7, y = 8, and z = 9

234

If m = 6 and n = 3, what is the value of the expression 3mn - 2m

42

Evaluate the expression 4y − 3y, if y = 7

7

Evaluate the expression (x²+y³) ÷ 3 when x = 4 and y = 2

8

The length of a vehicle's skid marks, in feet, can be calculated using the expression 0.04s². The speed of the vehicle, in miles per hour, when the brakes are first applied is represented by s. What is the length of the skid marks for a vehicle traveling 45 miles per hour when the brakes are first applied?

81

It costs $100 to rent the skating rink plus $5 per person. Write an expression to find the cost for any number (n) of people.

100 + 5n

Evaluate the expression 4m - 3n + 2y when m = 5, n = 2.2 and y = 3/5

14.6

Evaluate the expression 3x + 2y when x = 4 and y = 2.4

16.8

The expression c + 0.07c can be used to find the total cost of an item with 7% sales tax, where c is the pre-tax cost of the item. Use the expression to find the total cost of an item that cost $25.

26.75