Can someone please answer this question please answer it correctly please show work please

answer:

#6:  Option C, 49

#7:  Option D, 5r + 2s + 6

#8:  Option B, -6p + q

#9:  Option E, 0.4x + 0.1

Step-by-step explanation:

#6:  a^2b - 2b when a = 3 and b = 7

(3)^2*(7) - 2(7)

(9)*(7) - 14

63 - 14

49

answer:  Option C, 49

#7:  4r + 9 + r + 2s - 3

5r + 6 + 2s

5r + 2s + 6

answer:  Option D, 5r + 2s + 6

#8:  -4p - 3q - (2p - 4q)

-4p - 3q - 2p + 4q

-6p + q

answer:  Option B, -6p + q

#9:  0.5(x + 0.1) - 0.1(x - 0.5)

0.5x + 0.05 - 0.1x + 0.05

0.4x + 0.1

answer:  Option E, 0.4x + 0.1

answer:

6: 49

7: 5r+6+2s

8: -6p+q

9: 0.4x+0.1 / 0.5x+0.05-0.1(x-0.5)

Step-by-step explanation:

will add in a sec

edit*

nvm, lol notifications tore me away while I was typing and it didnt save

i believe the correct answer is option 4.principalities were small territories that were run by russian rulers.

which statement correctly defines principalities in northern asia in the 1200s? principalities were small territories that were run by russian rulers.

hope i could ! : )