3.3 Calculate the missing value of A, the unit price excluding VAT?

To calculate the missing value of A, the unit price excluding VAT, we can use the formula:

A = B / (1 + (C/100))

Where:
A = Unit price excluding VAT
B = Total price including VAT
C = VAT rate

Given:
B = $120
C = 20%

Plugging in the values:

A = 120 / (1 + (20/100))
A = 120 / (1 + 0.20)
A = 120 / 1.20
A = $100

Therefore, the missing value of A, the unit price excluding VAT, is $100.