Answer:
2
Step-by-step explanation:
Communicative Property: (5+7) +3
Associative prop: (3+5) +7 or (3+7) +5
And the last one, I don’t fully understand what it is asking, but I believe it is asking for the answer which would be 15
Answer: ITS IS THIS or that i dont know what you mean.
Step-by-step explanation: Is this what you're looking for? if you were paying attention you would've KNOWN SO NExt time PAY ATTENTION BUT GOOD LUCK
She can make 8 costumes divide the numbers 6\.75=8
Number of exams per semester = 5
Average of first four exams = 90
Therefore,
Total of first four exams = 90*4 = 360 marks
Based on 5 exams,
Average = 360/5 = 72
