What is the total surface area of a cylinder with a base diameter of 9 inches and a height of 6 inches? (use 3.14 for
ti)

What is the measure of x, in degrees

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

Lines a and b are parallel. what is the value of x? -5 -10 -35 -55