Brad bought a skateboard for $2 less than half its original price. if he paid $21.50, which skateboard did he buy?
a. go green: $45
b. speedster: $47
c. up and down: $43
d. with the flow: $41

If the measure of angle 1 is 110 degrees and the measure of angle 3 is (2 x+10 degree), what is the value of x?

Jamie went to home depot.she bought 25 bags of soil that cost $9 per bag.she bought 15 pots at $8 each, and she bought 23 bags of pebbles at $15 each.she used a coupon that gave her $5 off for every 100 dollars she spent. how much did jamie pay at the end?

Explain how the quotient of powers was used to simplify this expression.