If 1 gallon of paint covers 300 square feet, how many gallons are needed for a room 30' long x 20' wide x 12' high?

Jackson drew 4 hearts and 29 circles. what is the ratio of circles to all shapes?

Which is the graph of the function y=2(4)^x

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?