. The new floor in the school cafeteria is going to be constructed of square tiles that are either gray or white and in the pattern that appears below. What is the ratio of white tiles to the total number of tiles in the pattern? Write your answer in 3 different ways.

12x + 1 = 25 solve the following equation. then place the correct number in the box provided.

If f(x) = 4 - x2 and g(x) = 6x, which expression is equivalent to (g-f)(3)? 06-3-(4 + 3)2 06-3-(4-33 6(3) - 4 +32 6(3) -4 -32

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?