Given a circle with radius of 2, which is the degree measure of an arc whose length is ?
a.
30o
b.
45o
c.
60o
d.
75o

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.

Two cars which are 40 miles apart start moving simultaneously in the same direction with constant speeds. if the speed of the car which is behind is 56 mph and the speed of the other car is 48 mph, how many hours will it take for the car which is behind to catch up the car ahead of it?

In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?