20% of 15 is 12$, and tax is 5% so it comes out to 12.60$
The answer is B
Sole for f by simplifying both sides of the equation then isolating the variable so that means f=-40 over 3 for number one
for the second equation you do the same thing you did for number one and the answer will be
b=8
What is your question about that?
Answer:
Step-by-step explanation:
