Evaluating, Simplifying and Writing Expressions

Write an expression that represents the height of a tree that begins at 8 feet and increases by 2 feet per year. Let y represent the number of years.

Evaluate the expression −10 − 2d given d = −5.

(a)  

Evaluate the expression −32 ÷ f² given f = −4.

(a)  

Evaluate the expression fe ÷ d + 2 given d = −5, e = 10, f = −4.

(a)  

Write an expression for the following situation, then solve using the given values: Emelia earns $8.74 per hour plus a gas allowance of $3.50 per day at her job. Write an expression that represents the total Emelia’s job will pay in a day when she works.

Simplify the expression:

-1.3f + 0.4j - 12 - 1 + 2.9f

(a)  

Simplify the expression.

8 - 4y + (-2y) + 5

(a)  

Which expression is equivalent to -2v + (-4) + 8 + (-3v)

Simplify the following expression: n + 4.5 - 0.3n - 3

(a)  

State the number of terms in each expression: 21 ÷ a − 8c + 14b • 26

(a)