Which of the following relations is a function? a. (9, -10), (-7, 7), (9, 6), (-7, 12) b. (-7, 0), (0, 5), (-7, -3), (5, 9) c. (0, -2), (-7, -5), (5, 8), (5, 2) d. (-7, 2), (0, 3), (5, 7), (9, 2)

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?

Find the value of x that will make l ll m

Two corresponding sides of two similar triangles are 3cm and 5cm. the area of the first triangle is 12cm^2. what is the area of the second triangle?