Unit 7: Expressions, Equations, and Exponents
QUIZ 1
Name: _________________
Date: __________ Period: ___
Teacher: ________________
1. Answer each of the following questions with a variable expression.
a. There are 12 acts in the school talent show.
If n acts have finished, how many acts are remaining?
b. In the school auditorium, there are 16 rows of x seats and 4 rows of y seats.
What is the total number of seats in the auditorium?
2. Evaluate the expression 16x + 4y for the following pairs of values:
a. x = 10 and y = 10
b. x = 20 and y = 6
3. Simplify this variable expression.
5x3 y 2 x5 y 4
•
x5
xy 2
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