A classroom has 12 students with brown hair, 8 students with black hair, and 5 students with blonde hair. If three students are chosen at random, what is the probability that they all have black hair?

Which of the following statements are true? The median is the arithmetic average of a data set. The median is the middle value of a data set when the data are ordered from least to greatest.

If two triangle share a side, are they congruent

4) Dan had 199 dollars to spend on 7 books. After buying them he had 17 dollars. How much did each book cost?

Given the function f (x) = - 5x^2-x+20 find f (3)

Write this trinomial i'm factored form. 5s^2-13s+6

The shaded figure is a rhombus. The area of the shaded section is 60 square units. What is the value of x? 4 units 6 units 8 units 9 units

What is the multiple zero and multiplicity of x^3+2x^2+x

Original grade 80 New grade 100 Find the percent of increase

What is the solution to the system of equations? Use the substitution method. j + k = 3 j - k = 7 A. The solution is (8, 1) B. The solution is (5, - 2) C. There is no solution. D. There are an infinite number of solutions.

What is the height of the cylinder in the diagram? Round your answer to the nearest whole number.