One ordered pair $(a, b)$ satisfies the two equations $ab^4 = 12$ and $a^5 b^5 = 7776$. what is the value of $a$ in this ordered pair?

Find the missing factor. 7s2 + 25s + 12 = (s + 3)( ).

The step function g(x) is defined as shown.what is the range of g(x)? ***answer choices in picture.

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%