A bag contains three red marbles and four blue marbles. The marble is taking at random from the bag and replaced. Another marble is taken from the bag. Work out the probability that the two marbles taken from the bag are the same color. Give your answer as a fraction.

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:

idk

step-by-step explanation:

payback

i think it would be c

mark brainliest if im right

step-by-step explanation: