C2.2 Evaluate algebraic expressions that involve whole numbers and decimal numbers.
Activity 1: Perimeter of a Trapezoid
The algebraic expression for the perimeter of a trapezoid is 5n + 3. What is the perimeter if n equals 3.62 cm?
Activity 2: Perimeter of a Rectangle
The algebraic expression for the perimeter of a rectangle is 6c + 8d. What is the perimeter if c is 4.1 cm and d is 5.37 cm?