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

Starting time 2:15 A. M. elapsed time 45 minutes my answer is now?

A right cone has a base diameter that is 12cm and a slant height that is 45cm what is the surface area

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Maria was playing a game with her brother. She said "I'm thinking of a number. When you multiply my number by six and add seven, you get twenty five. What is my number? Explain.

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