You can't exactly get the trigonometric functions using a point unless it's a vector,
so tanx = -8/-6 = 4/3 and from it we can get the other functions
sinx = -4/5
cosx = -3/5
secx = -5/3
cscx = -5/4
cotx = 3/4
Answer:
She can buy 3 hair ties
Step-by-step explanation:
5.95x3 =17.85 +2.15 = 20 on the dot