Monica asked her friends to buy a charity raffle ticket for $3. All but 4 of her friends bought a ticket, and she raised $18. How many friends did Monica ask?

10 friends

Step-by-step explanation:

$18/$3 = 6

6 = number of friends that bought a ticket.

4 = number of friends who didn't buy a ticket.

end result, 6+4 = 10

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed

1 + (6 / x - 1)

step-by-step explanation:

divide using polynomial division.