Mrs. Bird set-up her kindergarten classroom so that there was a right triangular area formed by the bookshelves, as shown in the picture below. Note: Figure is not drawn to scale.

If bookshelf A is 3 feet long and bookshelf B is 4 feet long, what is the length of bookshelf C?
A.
5 feet
B.
7 feet
C.
6 feet
D.
8 feet

The maximum distance (in nautical miles) that a radio transmitter signal can be sent is represented by the expression 1.23h√, where h is the height (in feet) above the transmitter. estimate the maximum distance x (in nautical miles) between the plane that is receiving the signal and the transmitter. round your answer to the nearest tenth.