A recipe requires 3 cups of flour, but you can only measure using 2/3 cups. how many 2/3 cups are need for the recipe? please leave the answer as a improper fraction.

One of the complementary angles is 4 degrees mor than the other. find the angles (recall that complementary angles are angles whose sum is 90 degrees.) which of the following can not be used to solve the problem if x represents one of the angles? a. 2x-4=90 b. 2x+4=90 c. x+4=90