Sum of Sit-Ups Over a Year Welcome! You are encouraged to register with the site and login (for free). When you register, you support the site and your question history is saved.On January first, Jamie did 1 sit-up. On each of the next 364 days, she did 1 more sit-up than on the preceding day. What was the total number of sit-ups she did over the 365 days? 66,430 66,795 66,978 67,160 132,860 Review Answer