Answer:
y = -4x + 29
Step-by-step explanation:
-3 = -4(8) + b
-3 = -32+b
29=b
a - b ≤ 25
b - yes
c - 26 ( draw the picture for your explanation)
Cosine is

which applies to a right triangle. I hope that helps you.
hi
4 entries are 24 so one entry is 24/4 = 6
so 7 friends pay 6*7 = 42