Rodrigo buys a jacket that is on sale 1/4 off the original price of $80. he has a coupon for an additional 10% off. how much does rodrigo pay for the jacket?
a.$49.50
b.$52.00
c.$54.00
d.$18.00

Mary works for a company that ships packages and must measure the size of each box that needs to be shipped. mary measures a box and finds the length is 7 inches, the width is 14 inches, and the height is 15 inches. what is the volume of the box? [type your answer as a number.]

Haley buys 9 pounds of apples for $3. how many pounds of apples can she buy for $1?

If sin(x) = 0 and cos(x) = 1, what is tan(x)?