The carpenter had a board of wood that was 6.9 feet long. She needed to cut the board into 4 equal pieces. How long was each board?

A80-foot piece of siding is cut into three pieces so that the second piece is four times four times as long as the first piece and the third piece is five times as long as the first piece. if x represents the length of the first piece, find the lengths of all three pieces.

8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals

Afrequency table of grades has five classes (a, b, c, d, f) with frequencies of 3, 13, 14, 5, and 3 respectively. using percentages, what are the relative frequencies of the five classes?