PLEASE HELP ME I AM PAYING 100 POINTS!! Mal works at a photo gallery. He charges $50 for a large photo and $40 for a large frame. Sales tax is 5%. How much total tax will a customer pay on both?
Answer the questions to show how to write and simplify expressions that represent the problem.

1. One way to calculate the total tax is 0.05(50 + 40). Use the order of operations to evaluate this expression. Show your work.

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2. Use the distributive property to expand 0.05(50 + 40).

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3. Find the total tax using the expanded expression. Did you get the same answer as you did by evaluating the original expression?

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4. Which expression, the original expression or the expanded expression, involves finding the total cost first, then calculating the tax on that total?

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