#3.

Printer ink cartridges cost $26 each. The company that sells the ink cartridges charges a flat rate of $6.50, no matter how many ink cartridges you buy.

Write an algebraic expression that describes the total cost for a single order of x, cartridges.

(26+6.50)x
32.50x
26+6.50x
26x+6.50

The correct algebraic expression that describes the total cost for a single order of x cartridges is 26x + 6.50.