The drama department has set a fundraising goal of $2,200, which students will try to meet or exceed by selling two kinds of popcorn. There are profits of $1 for each container of caramel popcorn sold and $3 for each container of chocolate-covered popcorn sold.

From equation B C D we find that for every increase in sale  of 300 containers of A  a decrease of 100 containers of B is seen to get the desired profit of $2200.

Step-by-step explanation:

Let A be the number of  container of caramel popcorn  and B be the number of  container of chocolate-covered popcorn sold.Then the profit would be

$2200= A + 3B A

Suppose we have 100 types of A containers sold then

$2200=  $ 100+ 3B B

$2100= 3B

B = $2100/$3= 700  B containers  will be sold.

Suppose we have 400 types of A containers sold then

$2200=  $ 400+ 3B C

$1 800= 3B

B = $1800/$3= 600  B containers  will be sold.

Suppose we have 700 types of A containers sold then

$2200=  $ 700+ 3B D

$1 500= 3B

B = $1500/$3= 500  B containers  will be sold.

From equation B C D we find that for every increase in sale  of 300 containers of A  a decrease of 100 containers of B is seen to get the desired profit of $2200.