All of them are wrong its 91 but if you want click or circle 90
Answer:
these equations are not parallel because the slopes are not the same.
Step-by-step explanation:
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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What the hell am I trynna answer here, there is no question
C = 2πr
divide by 2π
C/2π = r
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