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.

5 answers

This is familiar, you can go here to see the answer:
htt ps://www.jiskha.com/questions/1879021/ (without space)
FYI: I changed my name
changed again
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):
htt ps://www.jiskha.com/questions/1879027/in-an-online-media-store-downloaded-songs-cost-3d-each-and-books-cost-9b-each-caleb#2289622

Then remove the space