Given the two sets, which statement is true?

a = {1, 2}

b = {1, 2, 3, 4}

a. b c a

b. 3 c a

c. 4 c a

d. a c b

e. none of the above

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

If $740 is invested at an interest rate of 11% per year and is compounded continuously, how much will the investment be worth in 7 years? use the continuous compound interest formula a = pert.

Janice determined there were 10 possible outcomes when tossing two coins and spinning a spinner numbered 1 through 6. what is the correct number? what might have been janice's error?