Find the surface area of the prism. could anyone check if i'm right?

Identify whether the figure has plane symmetry, symmetry about an axis, or neither.

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.

Afrequency table of grades has five classes (a, b, c, d, f) with frequencies of 3, 13, 14, 5, and 3 respectively. using percentages, what are the relative frequencies of the five classes?