Final answer:
The percent of increase in the inventory of lawnmowers at Greenville Hardware is 10%.
Step-by-step explanation:
To find the percent of increase, we need to calculate the difference between the new and old values and then divide it by the old value. In this case, the inventory increased from 26,570 to 29,227 lawnmowers. The difference is 29,227 - 26,570 = 2,657. Now we divide this difference by the old value: (2,657 / 26,570) * 100 = 10%
Therefore, the percent of increase is 10%. Option a) 10% is the correct answer.