Variables & Expressions
Rates and Percents
100
What is the value of x6+y2 when x=1 and y=9?
82
100
11.4
200
20
200
A store has a 40% off sale on headphones. Before this discount, the price of one pair of headphones is $36. What is the new price of the headphones?
$21.60
300
Evaluate ab-0.5b when a=4 and b=5.
17.5
300
Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.
How tall was Cody on the first day of school last year?
150cm