You are running a fuel economy study. One of the cars you find is blue. It can travel 45 1/2 miles on 1 1/4 gallons of gasoline. Another car is red. It can travel 20 4/5 miles on 4/5 gallon of gasoline. What is the unit rate for miles per gallon for each car? Which car could travel the greater distance on 1 gallon of gasoline?

How do you find principle and simple interest

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?