It’s b what u need to do is 13x9 which is 117 then divide it by 2 which is 58.5
Answer:
21.72
Step-by-step explanation:
0.07 x 20.30
If every single student met one an another, then you would hear 90 hi's. Since there are 45 different combinations of 2 students meeting another, and since there are 2 hi's each meeting, there would be 90.
I hope that this helps.
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Answer:
6.67 m/s
Step-by-step explanation: