A 5.0 kg and a 10 kg sphere are 0.3 m apart (center-to-center distance). Find the force of attraction between them.

An airplane travels at an unknown elevation before it descends 3 miles to an elevation of 15 miles. find the elevation of the plane before its descen.

(x-5)1/2+5=2 what is a possible solution?

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?