Select all the pairs of congruent angles. ∠5 and ∠4
∠6 and ∠2
∠7and ∠8
∠1 and ∠8
∠5 and ∠3
∠3 and ∠2

What are the solutions of the equation? 5z^2 + 9z - 2 = 0 a. 1, -2 b. 1, 2 c. 1/5, -2 d. 1/5, 2

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Your friend uses c=50p to find the total cost, c, for the people, p, entering a local amusement park is the cost of admission proportional to the amount of people entering the amusement park? explain.