Me

7. 9a - 3b

8. (-6m + n) + (-4m - 5n)

9. (9x2 + 5) + (-2x2 - 8) + (x2 - 3)

10. 4a + (9a+3)

11. 7b + (4b - 6)

12. 8d2 + (6d2 - 4d)

13. (5x2 + 4) + (-3x2 - 4)

14. [-4x + (10 - 5x)] + 5x

15. 8 + [5 + (6 + x)]

Which equation can be used to solve for the unknown number? seven less than a number is thirteen. n-7=13 7-n=13 n+7=13 n+13=7

Marcus needs to rewrite f(x) = x2 + 6x + 4 in vertex form.

Due to a packaging error, 4 cans labeled diet soda were accidentally filled with regular soda and placed in a 12 pack carton of diet soda. two cans were randomly selected from this 12 pack. what is the probability that both cans were regular soda?