John made 2 quarts of juice for a school party. he said that he made 2 fourth cup of juice. explain johns mistake.

Answer question above and explain each step : )

List x1, x2, x3, x4 where xi is the midpoint endpoint of the five equal intervals used to estimate the area under the curve of f(x) between x = 0 and x = 10.

∠1 and ∠2 are vertical angles. ∠2 has a measure of 63°. what is the measure of ∠1 ? enter your answer in the box.