Frank is choosing a 2 letter password from the letters a b c d and e. the password cannot have the same letter repeated in it. how many such passwords are possible

In the rectangle below ac=30 units what is de

The estimated number of people to attend the last bengals game of the season was 2000. the actual number of fans attending was 1200. by what percent did the estimate differ from the actual?

Prism m and pyramid n have the same base area and the same height. cylinder p and prism q have the same height and the same base perimeter. cone z has the same base area as cylinder y, but its height is three times the height of cylinder y. the figures and have the same volume.