How are large polymers formed? by repetitive combinations of simple subunits
by the addition of halogens to a small molecule
by combining a few different and larger molecules
by combining many different and smaller molecules

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.

Acylinder has volume 45π and radius 3. what is it’s height?

Donald has x twenty-dollar bills and 11 ten-dollar bill. how much money does donald have? write your answer as an expression.