Istuck on this question someone plz

Shannon:

$13.50/2 = $6.75

$20.25/3 = $6.75

Each of Shannon's shirts cost $6.75.

The difference in price per shirt is $7.50 - $6.75 = $0.75.

Anna:

c = 7.50n

For 1 shirt, n = 1, so

c = 7.50 * 1 = 7.50

Anna's shirts cost $7.50 each.

Shannon found the better buy because the shirts cost $0.75 less.

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.

35-60 students are taking math.