С=7х + 8y
ЧX +5y>40
Ху>40

The difference between two numbers is one. three times the larger number minus two times the smaller number is 9. what are the two numbers

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?

Which expression and diagram represent “renee biked four times as far this month as last month”?