Gina can trade empty bottles for money at the grocery store. She returned a few bottles worth $0.10 each and 6 bottles with $0.05 each. The clerk paid Gina $0.80 for all the bottles How man bottles worth $0.10 did Gina return
A.4
B.5
C.6
D.8

If 2(a^2+b^2)=(a+b)^2 then, > a+b=0, > ab=0, > a=b, > 2a=b

Joanie watched 1 out of three of a movie in the morning

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.