4(5f + 9) -2(6 + 4n)

-5( -2 - 4b)

-5(3 - 8d)

5(2h - 3)

2( -6b - 7)

7( -9 + 8q)

-2(9 - 4c)

4( -2w + 3)

9(5k - 4)

ok I answer all question

1) 4(5f + 9), =20f+36 (I do)

2) -2(6 + 4n), =−8n−12 (I do)

3) -5(-2 - 4b), =20b+10 (I don’t have the explain)

4) -5(3 - 8d), =40d−15 (I don’t have the explain)

5) 5(2h - 3), =10h−15 (I don’t have the explain)

6) 2(-6b - 7), =−12b−14 (I don’t have the explain)

7) 7(-9 + 8q), =56q−63 (I do)

8) -2(9 - 4c), =8c−18 (I don’t have the explain)

9) 4(-2w + 3), =−8w+12 (I don’t have the explain)

10) 9(5k - 4), =45k−36 (I don’t have the explain)

Step-by-step explanation: if you doesn’t want me to do that I don’t know how you want me to do it. Sorry and when I said I don’t have the explain because I mess up on my paper but hope this help

x = 10.1

step-by-step explanation:

all of the angles of a tirangle add up to 180º

180 - 65 = 115 (since we already know the value of one angle)

(2x + 7) + (8x + 7) = 115

(combins like terms) 10x + 14 = 115

(isolate the variable subtract 14 from both sides): 10x = 101

(find the variable divide both sides by 10): x = 101/10

x = 10.1

8 2/3 is the answer

step-by-step explanation: just use a calculator