What is the angle measurement for 3/8 of a circle ??

Suppose the radius of a circle is 16. what issuppose the radius of a circle is 16. what is its circumference its circumference

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 x when x + 7 = 21?