WHOEVER SOLVES THE UN ANSWERED QUESTIONS THAT I HAVE IN MY ACCOUNT I WILL DO A 90 POINT GIFT

An advertising firm has an old computer that can prepare a whole mailing in 6 hours. with the of newer model the job is complete in 2 hours. how long would it take the newer model to do the job alone?

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?

Acone with volume 1350 m³ is dilated by a scale factor of 1/3. what is the volume of the resulting cone? enter your answer in the box. m³