Marla bought 7 boxes. a week later, half of all her boxes were destroyed in a fire. there are now only 22 boxes left. how many did she start with?

Let b represent the starting number of boxes. Then, after her purchase of 7 more boxes, Marla had x+7 boxes, which constitute half of the starting number:

(1/2)(x+7) = 22, or x+7 = 44. Thus, x = 37.

Marla started with 37 boxes.

She purchased 7 more, bringing her count to 44 boxes.

She lost half of these 44 boxes, or 22 boxes, in the fire.

Marla started with 37 boxes.

the median here is 25. your lowest value is 14 and highest value is 48. to find the third quartile, find the medium number in between 25 and 48 which would be 42 i believe.