Answer:
4 weeks : 5 books
8 weeks : 10 books
Step-by-step explanation:
alright so she is reading at a rate of 1.25 books per week, we know this becasue we can divide 15/12 which is equal to 1.25. Know we know the rate we can just multiply the rate by the number of weeks, so 4 * 1.25 = 5, and 8 * 1.25 = 10.