Element X decays radioactively with a half life of 9 minutes. If there are 550 grams of Element X, how long, to the nearest tenth of a minute, would it take the element to decay to 13 grams?

Find the x-intercept and y-intercept of the line. 3x + 5y = −15

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 x is 6, then 7x= a. 13 b. 42 c. 42x d. 76