Add 7 and 3 8ths meters plus 6 and 1 third meters. does the sum belong to the set of rational number integers or whole numbers?

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

Negative 5 1/12 + negative 4 1/4 + 6 3/4

Runner ran 1 4/5 miles on monday and 6 3/10 on tuesday. how many times her monday’s distance was her tuesdays distance