Find the coordinates of the midpoint of line PQ given P(-3, 4) and Q(5, 6).

Given that Cos A = \(\frac{12}{13}\) for 0 ≤ A ≤ 90º, find Tan A.

Which of the following angles cannot be constructed using a protractor, a compass, and a sharpened pencil?

Find the number of permutations of the letters of the word SCHOOL.

Y is partly constant and partly varies as x. When x = 3, y = 7 and when x = 5, y = 11. Find the constants of variation.