To calculate how much Bob spent for tax and tip combined and how much he spent in total, we can use the information provided in the question.
a. How much did Bob spend for tax and tip combined?
- Bob's bill for dinner at Surefire Steak House was $30.
- He paid 7% of the bill in tax.
- He left a tip for 15% of the bill.
To calculate the tax amount, we multiply the bill amount by the tax rate:
Tax = 7% of $30 = $2.10.
To calculate the tip amount, we multiply the bill amount by the tip rate:
Tip = 15% of $30 = $4.50.
Therefore, Bob spent $2.10 for tax and $4.50 for tip.
Bob spent a total of $2.10 + $4.50 = $6.60 for tax and tip combined.
b. How much did Bob spend in all?
To calculate the total amount Bob spent, we add the bill amount, tax amount, and tip amount:
Total = Bill + Tax + Tip = $30 + $2.10 + $4.50 = $36.60.
Therefore, Bob spent a total of $36.60 in all.