31. [Problem Solving 1] * At Oxley College recess finishes at
10:50 am and is followed by two
50 minute periods before lunch. At
what time does the lunch hour end?

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?

Using elimination, what is -4x+2y=-12 4x+8y=-24

Mila's dog weighs 4 pounds more than 8 times the weight of keiko's dog. which expression could be used to fine te weight of mila's dog?