Answer:
1 and a half per day.
Step-by-step explanation:
6/4 = 1.5
Day 1: Chapters 1 and half of 2
Day 2: Chapters half of 2 and 3
Day 3: Chapters 4 and half of 5
Day 4: Chapters half of 5 and 5
7 goes into 357 51 times. First you take 35 and see how many times 7 goes into that and that is 5 than you take 7 and see how many times 7 goes into that and that is 1 time so that you take your to answers and you get 51 as the final answer.
Step-by-step explanation:

where n starts from 0.
so the answer is :
16+5=21,
25+7= 32
There were 60 pies before the bake sale started.
<u><em>Explanation</em></u>
Suppose, there were
number of pies before the bake sale started.
As Mary set aside 2 pies for herself at the beginning of the bake sale, so the <u>remaining number of pies</u> 
Karen then bought half of the remaining pies for her birthday party. That means, the <u>remaining number of pies after Karen bought</u> will be: 
10 more pies were sold during the sale and there were 19 pies remaining when the sale was over. So, the equation will be......

So, there were 60 pies before the bake sale started.