Answer:
The expression of an algorithm to determine the biggest seven donors is:
a. Seven passes through the outer loop of an insertion sort
Step-by-step explanation:
In Insertion Sort, each record containing an amount of money donated in the current year and the donor's name is compared to the previous records. If the previous records are greater than the particular element, then the previous record is moved to the next position. This process continues until the large list of donor records is sorted, and the biggest seven donors will be shown as the top seven on the list.