What is cos(angle) if cot(angle) is undefined and sec(angle) is negative?

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?

Asystem of equations has 1 solution. if 4x-y=5 is one of the equations , which could be the other equation ?

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?