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Density of rock = 280 kg/m3
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1010
10100
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Using the density shown in the image, how much would 4m^3 of the same rock weigh? Give
your answer in kg. 15
(1 Point)
Enter your maths answer

Can someone explain the elimination method to me for this problem?

What are the constants in this expression? -10.6+9/10+2/5m-2.4n+3m

Mozart lenses inc. recently introduced seelites, a thinner lens for eyelasses. of a sample of 800 eyeglass wearers, 246 said they would purchases their next pair of eyeglasses with the new lenses. lenses inc. estimates that the number of people who purchase eyeglasses in a year is 1,700,000. most eyeglasses wearer buy one new pair of eyeglasses a year. what is the annual sales potential for the new lenses.