I WILL GIVE TONS OF POINTS TO HOWEVER HELPS ME!! An airplane was flying over the gulf of Mexico at an altitude of 875 feet. Directly below the airplane, a submarine was at a depth of -328 feet. What was the distance between the airplane and the submarine?

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?