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’m here for points.

b

step-by-step explanation:

u take $75 minus $60.the anwer/original($75)multiply by 100