Which shape has faces, edges, and vertices? A. sphere B. cone C. pyramid D. cylinder

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years

God's gym charges a sign-up fee of $100 plus $30 per month. write an expression to represent how much someone would pay for a membership.