What is half of a teaspoon of vanilla

For one history test, keith had to answer 40 questions. of these 40 questions, keith answered 28 of them correctly. what percent did keith get on his history test? round your answer to the nearest tenth if necessary

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

The interior angles formed by the side of a hexagon have measures of them up to 720° what is the measure of angle a