In an online media store, downloaded songs cost $3d each and books cost $9b each. Caleb purchased 15 songs and 3 books this month, and also paid $7 in sales tax. Write and simplify an expression to show how much Caleb spent on everything including tax.

possible answers:
Caleb spent (3d + 9b + 7) dollars.
Caleb spent (72d + 7) dollars.
Caleb spent (26b + 45d + 7) dollars.
Caleb spent $79 dollars.

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it doesnt work, the link dont work

Look select the link, copy and paste it into where ever you see this on the top of your screen (or partially):

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Then remove the space

To find how much Caleb spent on everything including tax, we need to add the cost of the songs, the cost of the books, and the sales tax.

Given that downloaded songs cost $3d each and books cost $9b each, Caleb purchased 15 songs and 3 books.

To calculate the cost of the songs, we multiply the number of songs (15) by the cost per song ($3d):
Cost of songs = 15 * 3d = 45d

To calculate the cost of the books, we multiply the number of books (3) by the cost per book ($9b):
Cost of books = 3 * 9b = 27b

Now, add the cost of the songs, the cost of the books, and the sales tax ($7):
Total cost = Cost of songs + Cost of books + Sales tax = 45d + 27b + 7

Therefore, the expression to show how much Caleb spent on everything including tax is:
Caleb spent (45d + 27b + 7) dollars.

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