April put gasoline in 4 of her 5 gallon cans and 6 of her 2 gallon cans. she filled all the cans to the cans to the exact capacity. how many gallons of gasoline did she buy? find the two hidden questions. solve.

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?