Write an expression for 47 plus the sum of five times six
and four times 3

Which of the following answers is 7/9 simplified? 7/9 2/9 11/9 2/7

In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.