- You collect coins. One of your favorite coins is a silver-colored coin showing a
man's portrait. The radius of the coin is
12 millimeters. What is the diameter of
the coin? What is the circumference of the
coin? What is the area of the coin?

the answer to this question is in the pic

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:

b. 2 and 4

step-by-step explanation: