22.1
She added 5 so you take away 5 which would be 44.2 then she doubles it another word for multiplication so you do the opposite and divide by 2 and you get 22.1
B. Y-y1=m(X-X1)
Y--1= 2(X-2)
Y+1= 2x-4
Sub 1
Y= 2x-5
The m is 2 cuz it's parallel to the other equation
Boys:girls = 4/5
boys = 4/(4+5) = 4/9 of the class
A.23/6
b.23/8
c.26/5
d.64/9
