I need help solving the following:

1. Simplify. (a⁶b⁷)⁶

5. Classify the following as a monomial, binomial or trinomial, where possible.

y⁷+ y⁶+ 8y⁵+ 2

6. Write in descending order and give the degree. 7x³+ 10x⁴+ 10

7. Evaluate x² 10x 6 for x = 3.

13. Express the number in scientific notation. The diameter of Neptune: 49,600,000 m

16. Add 6m² 2m 4 and 10m²+ 3m 6.

17. Remove the parentheses and simplify. 7y (10y 9x)

18. Subtract 4d²+ 9d 10 from 10d² 3d + 7.

19. Perform the indicated operations. [(6y²+ 2y 2) (y² 10y + 2)] (4y²+ 3y + 3)

20. A census study shows that the population from 1990 to 1998 of the only large town in a certain county can be modeled by the formula 102t² 225t + 3090 where t = 0 represents the year 1990 and that over the same years, the population of the surrounding county (not including the town) can be modeled by the formula 125t²+ 72t + 4978 where t = 0 represents the year 1990. Find a model for the total population of the county during the years 1990 to 1997.

23. Multiply. (4x 2)²

24. Divide.

25. Divide.

27. Evaluate 4x^0+5

29. Simplify x^-7/y^-2

30. Multiply (x-9)(x+9)