2. Aynı evrensel kümede A, B, C kümeleri veriliyor. s(A) + s(B') = 12 , S(A') + s(B) = 30 ve
s(C') = 15 ise, C nin 2 den az elemanlı alt küme
sayısı nedir?
A) 7
B) 11
C) 15
D) 21
E) 22

Cherie works in retail and her weekly salary includes commission for the amount she sells. the equation s=400+0.15c models the relation between her weekly salary, s, in dollars and the amount of her sales, c, in dollars. interpret the slope of the equation.