posted by pavleen .
wai ling averaged 84 on her first three exams and 82 on her next 2 exams.what grade must she obtain on her sixth test in order to average 85 for all six exams?
In sunlight, a vertical stick 6 ft tall casts a shadow 2 ft long. At the same time a nearby tree casts a shadow 14 ft long. How tall is the tree? Round to the nearest tenth