If jason spends 2 2/3 hours more at the camp, he will complete 7 hours of camp counseling. how many hours has he worked as a counselor so far? the answer is 4 1/3, but how? 20 points

In which figure is de bc ? a. figure 1 b. figure 2 c. figure 3 d. figure 4

Helll ! 1,400 tons of wheat of two different varieties was delivered to the silo. when processing one variety, there was 2% of waste and 3% during the processing of the second variety of wheat. after the processing, the amount of remaining wheat was 1,364 tons. how many tons of each variety of wheat was delivered to the silo?

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.