You are a supervisor for a home-cleaning business. You need to purchase bleach and are reviewing two options.Option A: Two 120-oz bottles for $18.59 eachOption B: Three 64-oz bottles for $11.15 each, plus $4.29 for shipping

Option A costs 2 × $18.59 = $37.18 for 240 oz, or about $0.155 per ounce. Option B costs 3 × $11.15 + $4.29 = $37.74 for 192 oz, or about $0.197 per ounce. The difference is about $0.042 per ounce, which rounds to $0.04, choice B.

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