Answer:
c. 15in
Step-by-step explanation:
If you imagine it like the picture below, you could use the pythagorean theorem to solve for x
Answer: n= -20?
Step-by-step:
Simplify both sides of the equation
1/5n+4=0
Then subtract 4 from both sides
1/5n + 4 - 4 = 0 - 4
1/5n= -4
Then multiply both sides by 5
5*(1/5n)=5*(-4)