Let f(x)=√x−4 . what is the average rate of change of f(x) from 8 to 14? round your answer to the nearest hundredth. a. −5.16 b. −0.19 c. 0.19 d. 5.16

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?

2.5 milligrams is equivalent to how many grams

What percent of 18 is 24? and plz explain thx.