A group of friends decides to share 4 chocolate bars. If each friend only ate 2/3 of a chocolate bar, how many friends shared the chocolate bars?

Two angles are complementary. the large angle is 36 more than the smaller angle. what is the measure of the large angle?

At oaknoll school, 90 out of 270 students on computers. what percent of students at oak knoll school do not own computers? round the nearest tenth of a percent.

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.a city water tank holds 20 gallons of water. a technician empties 25% of the tank. how many more gallons of water must be removed from thetank so that it has 5 of the water that it started with: the technician must removemore gallons of water for the tank to have 5 of the water that it started with.