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A Minnesota man has quite a cap collection. The
ever-growing collection must be stored in several
semi-trailers at the Corn Palace in Mitchell,
South Dakota. Started in 1970, the Minnesotan's
collection has so many caps that he could wear a
different cap each hour for nine years and six
months. How many caps does he have at this
time? Ignore leap years and use only whole
numbers.

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations: