Samantha has test grades of 86, 88, and 78 on her first three math tests. If she wants an average of at least 80
after the fourth test, what possible scores can she earn
on the fourth test?

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 the equation. 2x - 8(x+1)= 6(2x - 3)

Find the missing factor. write your answer inexponential form.9^2=9^4×