Combine like terms to simplify the expression:

7x + 3y - 2 + 6x - 1 - y^2

-2y^3 + 13x - 3

-y^2 + 3y + 42x^2 - 3

-3y^3 + 13x^2 - 3

-y^2 + 3y + 13x - 3

How do I derive the area of a trapezoid?

The sum of the digits of the number 2016 is 9. What is the least number greater than 2016 whose sum of the digits is 9

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Andrea wanted to calculate 5% of 300, so she multiplied 300 by 0.5 (300 x 0.5). Explain why this equation will not produce the correct answer and what Andrea should have done to get the correct answer.

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Given the functions, f (x) = 3x^2-7 and g (x) = x^3+1 evaluate f (g (2))

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The Square root of 20 lies between what two numbers

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Solve the inequality 4-y > 5 for y. Show and justify your steps.