You can purchase a 19 fl oz bottle of window cleaner for $3.33 or a 11 fl oz bottle for $1.94. Which bottle of window cleaner is the better deal? What is the unit price of this bottle?

a 19 fl oz bottle of window cleaner costs $3.33

=> 1 ft costs: 3.33/19 = 0.175$

a 11 fl oz bottle of window cleaner costs $1.94

=> 1 ft costs: 1.94/11 = 0.176$

Compare the unit price: 0.175 < 0.176, then:

=> first bottle is cheaper => better deal.

Hope this helps!

:)

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step-by-step explanation:

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step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.