Pls answer fast, question is in the attachment

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

X+ y = 5 ; x - y =3 solve using linear combination

An ant travels at a constant rate of 30cm every 2 minutes.at what speed does the ant travel per minute