Please can you help me on this equation. I just cant seem to solve this though i mostly don't need help. Thank you

Given f(t) = 282 - 53 +1, determine the function value f(2). do not include f(z) = in your answer

The vertices of a rectangle are given in the columns of the matrix . if is found to perform a transformation, what are the coordinates of the transformed rectangle? (0, 0), (0, –3), (–3, –3), (–3, 0) (0, 0), (0, 3), (3, 3), (3, 0) (0, 0), (0, 3), (–3, –3), (–3, 0) (0, 0), (0, 3), (–3, 3), (–3, 0)

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?