Answer:
C. 15
Step-by-step explanation:
Small triangle is similar to larger one so we can use the similarity ratio to solve the question:
CE/CA = DE/AB
4/12 = 5/AB cross multiply expressions
4AB = 60 divide both sides by 4
AB = 15
M = -8
-15 minus -7 equals -8
His average speed is 2.27 meters per second
Y=4 or -4
Explanation: trust me bro
