Evaluating Expressions Algebra

2x + 5(y - 1) when x=8 and y=5

• 20

• 31

• 36

• -4

Write an algebraic expression for:
the product of 5 and a number

• 5 + n

• n + 5

• 5n

• 5/n

Write an algebraic expression for:
8 more than a number

• 8 + n

• 8n

• 8 -n

• n-8

Evaluate expression: -5a -b for a= -6 and b= 3

• 33

• 30

• 27

• 24

Your favorite local band is selling merchandise and they have asked you to write an algebraic expression to represent their total profit. They are selling t-shirts (t) for $15 each and CDs(c) for $5 each.

• $400

• $275

• $5

Your favorite local band is selling merchandise and they have asked you to write an algebraic expression to represent their total profit. They are selling t-shirts (t) for $15 each and CDs(c) for $5 each.

• $400

• $275

• $5

What expression does this number line represent?

• 4n - n

• 2n + n

• 8n - 2n

• 16n - 4n

Find the value of the expression.

• -12

• 12

• 14

• -14

(y + z)² when y=5 and z=2

• 7

• 49

• 29

• 14

Evaluate the expression for n = 2 and p = 7.
np =

• 9

• 5

• 15

• 14