A cone with a radius 6 and height 12 has its radius quadrupled. How many times greater is the volume of the larger cone than the smaller cone? Explain how the volume of the cone would change if the radius were divided by four.

The cost varies directly with the number of tickets purchased. it costs $145 for 10 people to attend a concert. a. what is the constant of proportionality (k)? b. write the direct variation equation. c. home much does it cost for 8 people? d. graph this situation. be sure to label each axis and give the graph a title.