Mason brought chocolate and vanilla cupcakes to school for his birthday 12 students decided to take a cupcake and 25% took vanillahow mant people picked a vanilla cupcake

 3 students picked a vanilla cupcake.

Step-by-step explanation:

Hi, to answer this question we have to analyze the information given:

So, to obtain the number of students that picked a vanilla cupcake we simply have to multiply the number of students (12) by the percentage that took the vanilla ones. (25 %, in decimal form 25/100 =0.25)

Mathematically speaking:

12 x 0.25 = 3

3 students picked a vanilla cupcake.

Feel free to ask for more if needed or if you did not understand something.

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: