If y varies directly with x and y= 20 when k= 4, what is the value of x?

The circumference of a redwood tree trunk is 20π ft, and it is 100 ft tall. what is the approximate volume of the redwood tree trunk? 1,000π ft3 10,000π ft3 4,000π ft3 40,000π ft3

700 miles the train takes 5 hours to a travel the distance at what unit rate is the train traveling?

Acompany made a profit of 75000 over a period of 6 years on an initial investment of 15000 what is the annual roi