It’s definitely A
Ex: f(x)=8x+2
f(x)=8(-4)+2
f(x)=-32+2
f(x)=-30
Answer:
Y= -2x +40
Step-by-step explanation:
let's say the bill without the tip is "x" amount, so that'd be the 100% of the bill, but we also know that 4.50 is the 18% of "x".
so if 4.50 is the 18% of "x", how much is "x"?

Not sure if it's one of the answer you listed.
The • means multiplication, so it would be
54 times 58, which equals 3,132.