Jeffrey started babysitting so that he could earn money. He babysat for 21 hours last week in charge nine dollars an hour. About how much money did he earn? Choose the answer that is not reasonable.

A. $200

B. $270

C. $210

D. $180

How do you find the area of a triangle

Isuck at math ; ^; m a student solved this problem and said the answer is 3 feet. chase had a roll of ribbon that contained 7 7/8  feet of ribbon. he cut off one piece that was 3 5/8  feet long and another piece that was 1 1/4  feet from the roll. how much ribbon was left on the roll? is the student's answer reasonable? yes, the answer is reasonable. no, the answer is not reasonable. it should be about 2 feet. no, the answer is not reasonable. it should be about 13 feet. no, the answer is not reasonable. it should be about 4 feet.

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