Answer:
10,800
Step-by-step explanation:
you would multiply 1450 by 3 witch is 4350 then multiply that answer by to for the second year witch is 8700 then u take the price of ur books witch is 350 and multiply that by 3 witch is 1050 then multiply 1050 by 2 witch is 2100 then u add 8700 and 2100 and that gives u 10800