The school offered a chess club after school. In one class, 15 of the 25 students in the class signed up
for the club. If the rate stays constant across the school, how many students are in the whole school if 210 signed up for chess club?

Can anyone me with 32,33,36,37,and 40.

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.

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !