Write an expression for the number of minutes in h hour.

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

Koji is installing a rectangular window in an office building. the window is 823 feet wide and 534 feet high. the formula for the area of a rectangle is a=bh. what is the area of the window? enter your answer as a mixed number in simplest form in the box. $$ ft2

Is the power produced directly proportional to the wind speed, give reasons for your answer?