A negative balance of money could represent debt or money owed.
Answer:

Step-by-step explanation:
The formula ogf a volume of a pyramid:

B - area of a base
H - height
We have a base length a = 5 in and a height H = 9 in.
In the base we have a square. The formula of an area of a square is:

Substitute:

Calculate the volume:

Answer:
f(x)=cos(x)
The amplitude is equal to 1. The period is 2π.
Question one is y( Insert sign) -9