HELP PLZ 10 POINTS Given three non-collinear points, how many lines can be drawn so that each line goes through two of the given points? Draw a picture.

(! ) three cylinders have a height of 8 cm. cylinder 1 has a radius of 1 cm. cylinder 2 has a radius of 2 cm. cylinder 3 has a radius of 3 cm. find the volume of each cylinder

Gregory draws a scale drawing of his room. the scale that he uses is 1 cm : 4 ft. on his drawing, the room is 3 centimeters long. which equation can be used to find the actual length of gregory's room?

Find the solution of this system of equation -7x+y=-20 9x-3y=36