I have taken the test and I can confirm that the answer is
B. 15 m, 20 m, and 25 m.
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2.25h(60m/hr)(1/3)=45m
So Rick spends 45 minutes studying math per night.
Answer:
The answer is a A. I just took a short test about it.
Step-by-step explanation:
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Asked and answered elsewhere.
brainly.com/question/10629871How do you calculate it? You start by expressing the density in the units you have. Then you multiply by appropriate conversion factors to get to the units you want. Treat units as though they were any other variable. A value cancels that appears in both the numerator and denominator of a fraction.