The height of a cone is two times its base diameter. What is the volume of the cone in terms of its base radius r? A. v=2/3 pi r^2
B. v= 4/3 pi r^3
C. v=1/3 pi r^3
D. v=1/3 pi r^2

Adaycare center charges a $75 enrollment fee plus $100 per week. which of the following represents the cost of sending a child to daycare for 14 weeks?

I'll give brainliest if you answer right : )

Asalesperson earns $320 per week plus 8% of her weekly sales. the expression representing her earnings is 320 + 0.08x. which of the following describes the sales necessary for the salesperson to earn at least $1000 in the one week?