[20 ! someone me serious answers only

Hi there! 

I am not the greatest at functions, but I hope this helps you!

Part 1:
The input is multiplied by 2 and increased by 1 to get the output.

Or, the output is all odd numbers (consecutively) and the input is all numbers both even and odd (consecutively).

Part 2:
F(n) = 2x + 1

The blank next to the input 3 would be 7 because (3 x 2) + 1. The blank next to the output 13 would be 6.

than do 23.50 times 18 and then divide your answer by 100 than you will get x.