Richard can do a job in eight hours that Randy needs 13 hours to do. If Brandon works four hours before Richard joins him how long does it take the two of them to finish the work?

5x + 2y = 8 x + y = 4 If you want to solve the system of equations by addition, which of the following could you do?

48 round to the greatest place

Find from first principles the derivative of x squared plus 2x

If you flip a fair coin 3 times what are the chances you will get all heads

Christy solved this problem. A store charged a customer $445.50 for 150 floor tiles. What is the price of each tile? Christy thought the answer was $2.97. Is Christy's answer reasonable? A. Yes, Christy's answer is reasonable. B.

12 out of 15 as a percent, a decimal and a fraction

Make sure it's fully reduced. 2 - x = 5/8

A book store is having a sale. The book Bart wants was originally priced at $14.99. The book is now $10.04. By what percentage was the price reduced?

A single person earns a gross biweekly salary of 840 and claims 5 exemptions what is the persons net pay

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