If you are pocking a number between 1-20 what is the probability that you will pick a number greater than 14 or less than 4?

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

Tickets to a science exposition cost $5.75 each for studentd and $7.00 for adults.how many students and adults went if the ticket charge was $42.75

Can someone me with my math problems i have a bunch. i will give brainliest and lots of pleeeaaasssee