Answer:
d
Step-by-step explanation:
If one angle is d° then it's supplement is
(180-d)°
Let's assume that the faster car has a 2 mile "head start".
The faster car is 1.2 times faster (48/40) than the slower car.
It will take five 2 mile trips to "catch" the other car.
Five 2 mile trips will take 5 * 40 seconds = 200 seconds.
They ate 3/8 of the pie because 1/4=2/8 .and 1/8+2/8=3/8. Hope this helps