Arectangle has a length of 9.00 inches and a width of 4.25 inches. what is the area in square inches? round to the correct significant digits.

answer for blank 1:

Is the square root of 4 plus the square root of 16 rational?

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?

In a small section of a stadium there are 40 spectators watching a game between the cook islands and fiji. they all support at least one of the two teams. 25 spectators support the cook islands and 16 of these support both teams. how many support only fiji?