#973395
On his first 5 biology tests, Bob received the following scores: 72, 86, 92, 63, and 77. What test score must Bob earn on his sixth test so that his average (mean score) for all six tests will be 80
Варианты ответа:
- 90
- 86
- 95
- 80
Курсы в категории:
Естественные науки