Abookcase has two shelves. the top shelf has 10 more then 1/3 the number of books on the bottom shelf. there are 12 books on the bottom shelf. how many books are on the top shelf?

Tamera puts 15/4 gallons of gasoline in her car. which mixed number represents the gallons of gasoline? a) 2 3/4 gallons b) 3 1/4 gallons c) 3 3/4 gallons d) 4 1/2 gallons answer it's worth a lot of points!

Aflute is on sale for 20% off. including the discount and 8% tax, the sales price is $216.

Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?