Andrew sells treats from his ice cream cart. The items he sells along with their peices are shown on the table. Suppose Andrew sells the quantities of each item given by the variables in the table.Part A) What does the expression 1.75a + 2.25b + 2.75a + 2.25c + 1.75b represent in the context of this problem? Part B)An expression equivalent to the one above is 4.5a + 4b + 2.25c. What does the first expression show about the quantities in this problem that the second expression does not show,​