Answer:
209-66=143
143/.11=$1300
Step-by-step explanation:
the first one
2(w+l)=21+2w
w+l=10.5+w
So l = 10.5
C) 3*10^6
Divide the two numbers:
(6*10^-2)/(2*10^-8)=6/2*(10^-2/10^-8)=3*10^(-2-(-8))=3*10^(-2+8)=3*10^6
So C is correct