Answer:
so it equation a= 0.2
Step-by-step explanation:
The first one (a = 0.2 x 150). And a = 30
To find a percentage of a number, you multiply it by 0.10 for 10%, 0.20 for 20%, and so on. Since a is the unknown number, that makes the first option correct. Now, we multiply .2 and 150 to get 30. That is the answer to the second part.
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9.5 hours
