A cylinder _shaped water tank has a diameter of 10 m and a height of 10 m. What volume of water does the rank contain when it is 75% full ? Use 3.14 to approximate pi. Enter your answer as a decimal to the hundredths place in the box.

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?