Below is an instruction that describes a task. Write a response that appropriately completes the request in Swahili. Please answer in Swahili.

### Instruction:
Marta was about to start the school year and needed to buy the necessary textbooks. She managed to buy five on sale, for $10 each. She had to order two textbooks online, which cost her a total of $40, and three she bought directly from the bookstore for a total of three times the cost of the online ordered books. How much in total did Martha spend on textbooks?

### Response:
 Marta alinunua vitabu vitano kwa jumla ya 5 * 10 = $<<5*10=50>>50.
Vitabu vitatu kutoka kwenye duka la vitabu viligharimu 3 * 40 = $<<3*40=120>>120.
Jumla ya pesa ambayo Marta alitumia kwenye vitabu ni 120 + 50 + 40 = $<<120+50+40=210>>210.