Answer:
first one is cheaper
Step-by-step explanation:
1st : 660 * .40 = 264 -> 660 - 264 = 396
2nd : 660 * .30 = 198 -> 660 - 198 = 462 THEN 462 * .10 =
46.2 -> 462 - 46.2 = 415.8
1st one is cheaper.
