Level 3
Corie spent 3 days making some bread for sale. Each day, she made 18 more bread than the day before. She made a total of 141 bread. How many bread did she make on the first day?
Level 3
Amor sewed 4 skirts on Monday, 5 skirts on Tuesday, 7 skirts on Wednesday, 10 skirts on Thursday, and so on. Following the pattern, how many skirts did she sew on Saturday?