Help me! Right answer gets brainliest

Step-by-step explanation:

Put them in alphabetical order

The numbers go last

The exponents go first in their letter

Example: #2

7k^3 + 9k^2 - 15 + 3k^2

9k^2 + 3k^2 + 7k^3 - 15

Then simplify

9k^2 + 3k^2 + 7k^3 - 15

12k^2 + 7k^3 - 15

Act the same to the fractions as the whole numbers (on #4)

Hope this helps you, use this for the rest of the questions

answer by yourhope:

hi! : )

a farmer that lived in ancient egypt would most likely be barried in the sand, in the desert!

: )