You need 1050 mL of a 85% alcohol solution. On hand, you have a 20% alcohol mixture. You also have a 90% alcohol mixture. How much of each mixture will you need to add to obtain the desired
solution?

6 hours 48 min

step-by-step explanation:

68÷5=13.6

13.6×30=408min=6 hours 48 min.

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step-by-step explanation:

if the pizza is divided equally into 2 equal halves then you would get

πr^2/2

where r is the radius of the pizza.

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