David made these grades on 5 math tests: 93, 87, 84, 96 and 80. what must he make on the 6th test to have an average of 90?
(explain)

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?

Which of these tables represents a non-linear function?

Given that abcd is a rhombus, what is the value of x?