Find the distance between the pair of points given on the graph

I’m stuck on this equation, anyone got the answer?

Jake bakes and sell apple pies. he sells each pie for $5.75 . the materials to make the pies cost $40. the boxes jake puts the pies in cost & 12.50 total. how many pies does jake need to sell to earn a profit of $50

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