1. The tide depth in a Pacific harbour from noon on March 1, 2012 to noon the next day can be modelled by the cubic function f(t) = 0.001+ - 0.061+ 0.870t +0.315 where fis the tide depth in metres and t is the number of hours after noon. Determine the tide depth at 10:00 on the second day.

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?