Which of the following sets of ordered pairs is not a direct variation?

A. (0, 0); (-2, 4); (3, - 6)

B. (1, 1); (-2, - 2); (3, 3)

C. (10, 2); (15, 3); (20, 4)

D. (0, 0); (1, 3); (2, 4)

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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