Which ratio is equivalent? 8 cm to 20 mm 20 : 8 • 1 : 4 8 : 20 • 4 : 1​

The volume of a cube is 8 in to the 3rd power. how long is each side?

In a small section of a stadium there are 40 spectators watching a game between the cook islands and fiji. they all support at least one of the two teams. 25 spectators support the cook islands and 16 of these support both teams. how many support only fiji?

Charlie is at an amusement park that has 18 different rides. each ride costs $1.75. the function c(r) = 1.75r represents the total amount of money that charlie will spend if he goes on r rides, but he never goes on the same one more than once. what domain and range are reasonable for the function?