Answer:
The answer is 131
Step-by-step explanation:
Answer:
89/100
Step-by-step explanation:
The average weighted by the number of students is ...
(90(0.90) +10(0.80))/100 = (81 +8)/100 = 89/100
Answer:
30 + 0.89m
Step-by-step explanation:
I think this is the correct answer.