27. when an airplane is at an altitude of six miles (i. e., six miles above sea
level), it is 350 miles from the airport. at an altitude of 4 miles, its 200
miles from the airport. at an altitude of 4 miles, it's 200 miles from the
airport. if the plane continues in this pattern, what will be its altitude when
it's 50 miles from the airport?

For the inequality |c| < |d| to be true, which of the following must be true?

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?

An unknown number x is at most 10. which graph best represents all the values of x? number line graph with closed circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the left. number line graph with closed circle on 10 and shading to the left.