
D. 12

~ More than 30 - 39 pledges.
7 + 4 + 1 = 12
In a business letter, the date line, which consists of the month, day, and year, is positioned two to six lines below the letterhead.
First, we have to find the rate:
500/50
100/10
10/1
10 cents a pitch:
129 * 10 = 1290
It will cost $12.90