Respuesta :

choixongdong

Answer:

[83, 100]

Step-by-step explanation:

Lowest score to get a B is 80

Total 4 tests,  to get at least a B  :  80 x 4 = 320

Total 3 test scores = 81 + 62 + 94 = 237

So the fourth test to get at least a B: 320 -237 = 83

Answer [83, 100]