1. A concert charges $8.25 for youth tickets and $12.50 for adult tickets. If y is the number of youth tickets sold and a is the number of adult tickets sold, which of the following expresses, in dollars, the total revenue from the tickets sold? A) 8.25a+12.50y
B) 12.50a+8.25y
C) 20.75a+20.75y
D) 20.75(a+y)
Show work please.

B

Step-by-step explanation:

There isnt any work to show this is a problem you can solve without a equation

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: