Question

Natile spent $28 on 2 dvd's. At this rate how much would 5 dvd's cost

Answer 1

28 : 2 = 14 $ (1 dvd)

14 * 5 = 70$ (5dvd)

or

(28 : 2) * 5 = 70 $

or

28 : 2 = x : 5

x = 70 $