The formula for this is: (sale price) / (1 - percentage)
Percentage have to be in decimal form, so divide percentage by 100 to get the decimal form.
220/(1-.20) = $275
The original price was $275.
The order from least to greatest is:
E, D, A, B, C
Answer: 16 books
Step-by-step explanation: 4 books each day for 4 days 4x4 = 16
F(3)=5 // f(3)=2(3)-1 = 5
