Mathias found the product as follows. Which of the following best describes his error?

He did not multiply the denominators correctly.
He did not factor the first numerator.
He did not divide out the 2 from the 4 and the 8.
He did not distribute the 5 to the terms in the other numerator.

The square root of 9x plus 7 plus the square rot of 2x equall to 7

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Sam is a waiter at a local restaurant where he earns wages of $5 per hour sam figures that he also eams about $3 in tips for each person he serves sam works 6 hours on a particular day. if n represents the number of people sam serves that day, which of the following functions could sam use to figure ehis total earings for the do o a. en) = 30 o b. en) = 5n+ 18