It took David 2/3 of an hour to bicycle 12 miles from his house to his friend's house. He followed the same route home. His average rate on the ride home was 3 mph faster than on his ride out. What was David's average rate on the ride home

Measures of the angle of r, 31 s (x+4) t (3x+9)

33% of college students say they use credit cards because of the rewards program. you randomly select 10 college students and ask each to name the reason he or she uses credit cards. find the probability that the number of college students who say they use credit cards because of the rewards program is (a) exactly two, (b) more than two, and (c) between two and five inclusive. if convenient, use technology to find the probabilities.

Which function has the domain x> -11