Every day at lunch, the Subway sandwich shop will use between zero and three gallons of guacamole. Historical data tells us that any amount of guacamole, up to the maximum of three gallons, is equally...

Every day at lunch, the Subway sandwich shop will use between zero and three gallons of guacamole. Historical data tells us that any amount of guacamole, up to the maximum of three gallons, is equally likely. a. If Subway makes $30 per gallon of guacamole sold, how much money from lunchtime guacamole sales does Subway make on average? b. What is the probability that Subway makes between $52 and $ 76 dollars in lunchtime guacamole sales on any given day? c. What is the probability that Subway sells between two and four gallons of guacamole on a given day?