So picky the expression idek how to do this at all

The table shows a pattern of exponents. what is the pattern as the exponents decrease?

Samantha is growing a garden in her back yard. she spend $90 setting up the garden bed and buying the proper garden supplies. in addition, each seed she plants cost $0.25. a. write the function f(x) that represents samantha's total cost on her garden. b. explain what x represents. c. explain what f(x) represents. d. if samantha plants 55 seeds, how much did she spend in total?

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i