The graph of y = f(x) is shown below. Find all values of a where f(x) = 4.

What is the approximate circumference of the circle shown below?

Long division the problem is 40 ➗ 348 = ?

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