Soda is on sale for $0.75 a can, and you have a coupon for $0.50 off your total purchase. write a function rule for the cost of n sodas, how much would 10 sodas cost?
A.C(n)=0.5n-0.75;$4.25
B. C(n)=0.75n-0.5;$7.00**
C C(n)0.5n-0.5;$4.50
D C(n)=0.75n;$7.50