Ms. harris is stocking up on dry-erase markers for the upcoming school year. she used 56 dry-erase markers last year and plans to use at least that many for next year. the number of markers in each box is two more than three times the number of boxes she purchased for this upcoming school year. which of the following inequalities can be used to determine b, the number of boxes she purchased. a. 3b2 - 2b ≤ 56 b. 2b2 - 3b ≤ 56 c. 2b2 + 3b ≥ 56 d. 3b2 + 2b ≥ 56