Out of seven grey and two white and one black marbles what are the odds in choosing a grey marble?

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?

Answer pls man im trying to get out of summer school

Tom drove 206 miles in 3.9 hours. estimate his average speed.