Decide which point lies on the line that is parallel to AB and passes through point P

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?

Agrasshopper weighs 0.89 grams. express the grasshopper’s weight in scientific notation.

Can someone me on this math worksheet about finding the given variable for these angles, and whether the triangles are similar. i really need these answers i’m so confused: ( !