You apply the sum of interior angles formula ie. (n-2)180. n=number of sides
since a pentagon has 5 sides it will be (5-2)180=540.
now add everything. x-5+x-6+2x-7+x+2x-2=540.
Solve for x: 7x-20=540
7x=540+20
7x=560
x=560/7
x=80
Answer: whats the question here if you wanna know how many boys there are there should be 12
Step-by-step explanation:

Multiply 4.8 into (20/3), and multiply 16/9 with (1.2b)

Multiply 9 on both sides
19.2b = 32(9)
19.2b = 288 Divide 19.2 on both sides
b = 15
Answer:
Step-by-step explanation:
<u>Given expression:</u>
<u>Distribute this to get:</u>
- a(b + c) = ab + ac
- 5(2 + 7) = 5(2) + 5(7)
Correct choice is D