You place a cup of 200of coffee on a table in a room that is 67of, and 10 minutes later, it is 195of. approximately how long will it be before the coffee is 180of? use newton's law of cooling:

Part a : solve -vp + 40 < 65 for v part b : solve 7w - 3r = 15 for r show your work .

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

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?