Problem 7-12 don't understand it so can I have answer please.

Problem 7-12 don t understand it so can I have answer please. class=

Verified Answer :

the answer is to your question is -21

The 225 students that did notĀ bring their lunch are 75% of the school, so find 1/3 of the 75% to get the 25%, then add the two and your final answer isĀ 300.