What is the solution to the system of equations shown below? 4x-y=-2
2x+3y=20

A. (1, 6) B. (1, -6)
C. (-6, -2) D. (6, -1)

Which expression is equivalent to 3^3 + 2^2?

See attachment below and find the equivalent of tan(∠qsr)

Use mathematical induction to prove the statement is true for all positive integers n, or show why it is false. 1^2 + 4^2 + 7^2 + + (3n - 2)^2 = [n(6n^2-3n-1)/2]