Six apples and 12 oranges cost $18. if x represents the cost of one apple and y represents the cost of one orange, then the variables can be related using the equation 6x + 12y = 18. which variable is the independent variable?

30 is 6 multiplied by a number y as a equation

Brook states that the distance on the line is 4 units. caleb states that the whole line does not have a distance because it continues on forever. vivian states that the line is 6 units long. which distance did brook measure? which distance did vivian measure?

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?