There are 4 lunch choices in a school cafeteria: salad, pizza, spaghetti, and sub sandwiches. the percentage of students that chose salad is 15%. if 45 students chose salad, what is the total number of students that ate lunch

The total cost of anja’s trip to the dentist was $628.35. she paid a flat fee of $89.95 which included the checkup and cleaning and then had 4 cavities filled, each of which cost the same amount. which shows the correct equation and value of x, the cost of each cavity filling?

Aclothing store has the sign shown in the shop window. pani sees the sign and wants to buy 3 shirts and 2 pairs of jeans. the cost of each shirt before the discount is $12, and the cost of each pair of jeans is $19 before the discount. write and simplify an expression to find the amount pani pays if a $3 discount is applied to her total

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?