A city has cone-shaped buildings for storing salt and sand for icy roads. Each building has a radius of 30 feet and a height of 20 feet. Find the volume of the
building. Use 3.14 for .
O A. 18,840 ft3
O B. 56,520 ft
O C. 1884 ft3
D. 628 ft3

Subtract 8 1/6 - 4 5/6 . simplify the answer and write as a mixed number.

How do i do this? i don’t understand

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling