Jill is in math club. there are 20 students in the club. the sponsor will pick two students at random to run the meeting. what is the probability that jill will not be picked? give answer as a decimal. ( show your work so i know how you got it! in advance! )

Atoy company is considering a cube or sphere-shaped container for packaging a new product. the height of the cube would equal the diameter of the sphere . compare the volume to surface area ratios of the containers. which packaging will be more efficient? for a sphere, sa =4πr²

What is the point-slope equation of a line with slope -5 that contains the point (6,3)

Liz had 140 pens and inna had 100 pens. after inna gave liz some pens, liz had 3 times as many pens as inna. how many pens did inna give liz?