Given:<2=<3
Prove: m<1+<3=180

Statement                               Reason

m<1 + m<2 = 180                     linear pair

*(m<1 and "<2 form a straight line together, a straight line has a degree measure of 180)

m<2 = m<3                              given

m<1 + m<3 = 180                    transitivity

168

step-by-step explanation:

i am pretty sure that the answer is 168

the number of the people going.

step-by-step explanation:

the cost to buy one movie ticket is $7. if the total cost for the movie is a function of how many people go, then the input is : the number of the people going.