Answer:3
Step-by-step explanation:
Given
There are total 40 students in a class
No of students with Pierced Nose n(N)=7
No of students with Pierced ear n(E)=36
and we know using sets

where
Students either nose or ear Pierced
no of students having both nose and ear pierced


Answer:
18
Step-by-step explanation:
Is there an image so I can see
Answer:
Option C
Step-by-step explanation:
Given the following question:
Total cost is $725
15% Marcus makes in commission.
In order to find the answer, we have to find 15% of $725 and that number will be the total in commissions he earned that week.

Marcus makes "$108.75" or option C in commissions last week.
Hope this helps.
Use the midpoint formula,
(x1+x2/2,y1+y2/2)
(-1-5/2,1-3/2)
(-6/2,-2/2)
(-3,-1)