I NEED THE EQUATION IM AWARE THAT 1 DAY IS EQUAL TO 50 DOLLARS BUT I NEED THE EQUATION FROM THE GRAPH!

Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.

Of the 304 people who attended a school play, 5/8 were students. how many of the people who attended were students.