Answer:
Two angles are called supplementary when their measures add up to 180 degrees.
You can write it as a proportion and then solve the proportion.
(2.5 hours is 150 minutes)
14 cars x cars
--------------- = -------------------
45 minutes 150 minutes
Then solve.
x=46.6666666
So that is about 47 cars
3 times 7= 21 times three =63
9×8-29+30/15-15 equals 30
