8+~1-3=4
Explanation-
8-1 is the same as 8+~1 so=7
7-3=4
Answer:

Step-by-step explanation:
<em><u>The correct function is</u></em>

we have
System of equations
-----> equation A
-----> equation B
Solve by substitution method
substitute equation B in equation A

Solve for r
Divide by 7.188π both sides

square root both sides

Answer:
n=27
Step-by-step explanation:
Any explain this to me a little bit morebetter