how did you do that?
simplify it
1. (-10,7)
21in./15in.=1.4
1.4in.^2=1.96
196in.^2/1.96=100in.^2
4/110=?/550
550/110=5
5*4=20
?=20
0.06, 0.6, 0.603, 0.63, 0.633
http://www.101computing.net/python-turtle-clock/
9/22=0.40909090909090909090909090909091
10. https://www.desmos.com/calculator/ldobo0y17u
p(type b-defective)=18/120
p(type b-defective)=3/20
