Hey! There are 7 sides and 7 vertices on a Heptagon. Hope this helps!
To work out the estimate cost you need do 200 * 5=$1000
then I used a calculator and the actual answer is $895
Answer:
D(x=1).
Step-by-step explanation:
2(5x+8)=6x+20
10x+16=6x+20
10-6x+16=6x-6x+20
4x+16=20
4x+16-16=20-16
4x=4
4x/4=4/4
x=1
