Barney worked 14 hours last week and earned a total of $96. His job as a lifeguard pays $8 per hour, and his job as a cashier at the hot dog stand on the beach pays only $6 per hour. How many hours did he work at each job?

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?