Answer:
3 students
Step-by-step explanation:
If everyone in the class has either a pierced nose or ear, we just simply have to add up the total number of hands raised and minus the number of students in the class.
35+8=43
43-40=3
3 students have both a pierced nose and pierced ear.
I got 110 but it might be wrong let me check.
Answer:
Option C, 
Step-by-step explanation:
<u>Step 1: Set x to -1</u>
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Answer: Option C,
Answer:
The sum of any integer and its opposite is equal to zero. Adding two positive integers always yields a positive sum, adding two negative integers always yields a negative sum. To find the sum of a positive and a negative integer, take the absolute value of each integer and then subtract these values.
