PLEASE HELP 1. Pia printed two maps of a walking trail. The length of the trail on the first map is 9 cm. The length of the trail on the second map is 6 cm.
The scale factor on the first map is such that 1 cm represents 2 km on the actual trail. What is the length of the actual trail? Show your work.

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.

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

Which function has the domain x> -11