B. 9 packs for $3 is best to me
115>5.75x+28.75
5.75x+28.75<115
5.75x<115-28.75
5.75x<86.25
x<86.25/5.75
x<15 or (-∞,15)
Answer: x<15 or (-∞,15)
5(x+4)+16
5x+20+16
And then the solution is 5x+36
The value of the trigonometric ratio, Cos C is 5/13. The answer is A.