Convert 91 centimeters into meters?

Find the area of a parallelogram with base 15 yards and height 21 2/3

We just started the introduction into circles and i have no idea how to do this.

Find the 6th term of the expansion of (2p - 3q)11. a. -7,185,024p4q7 c. -7,185p4q7 b. -7,185,024p6q5 d. -7,185p6q5 select the best answer from the choices provided a b c d