The cost for 3.25 pounds of coffee beans is $19.14. what is the cost of 1 pound of coffee beans

If you answer right ill give brainliest, : )

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

Which expression gives the exact value of x?