A group of four friends went out for dinner. Their subtotal for their meal came out to $156. While waiting for the bill to come they tried to figure out how much the tax would be if they know the local tax is 8%. They also know they want to leave a 15% tip for the waiter. What is the final bill, including tax and tip? How much will each friend pay?

i got 191.85

156 * 1.08 = 168.48

168.48 * 0.15 = 25.27

168.48 + 25.27 = 193.78

193.78/4 = 48.45

but how did you get the 4

To find the final bill amount including tax and tip, we need to calculate the tax amount and the tip amount first, and then add them to the subtotal.

1. Calculate tax amount:
The local tax rate is 8%. To find the tax amount, multiply the subtotal by 0.08 (8% as a decimal):
Tax amount = $156 * 0.08 = $12.48

2. Calculate tip amount:
The group wants to leave a 15% tip. To find the tip amount, multiply the subtotal by 0.15 (15% as a decimal):
Tip amount = $156 * 0.15 = $23.40

3. Calculate the final bill:
The final bill is calculated by adding the subtotal, tax amount, and tip amount together:
Final bill = Subtotal + Tax amount + Tip amount
Final bill = $156 + $12.48 + $23.40 = $191.88

4. Calculate the amount each friend will pay:
Since there are four friends, you divide the final bill by 4 to find the amount each friend will pay:
Amount each friend will pay = Final bill / Number of friends
Amount each friend will pay = $191.88 / 4 = $47.97 (approximately)

Therefore, the final bill, including tax and tip, is $191.88. Each friend will pay approximately $47.97.