You want at least three bratwursts or hamburgers for each of your 20 guest
2 answers:
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C = 
r
9.5 = 2r
r = 4.75
r = 1.511971959
The number above should be rounded to the nearest 2 decimal places, so the answer is 1.51.
9.5 = 2
r = 1.511971959
The number above should be rounded to the nearest 2 decimal places, so the answer is 1.51.