4.1+Comparing+Costs+0809

A.) and at 25 both bids are 200$ each
 * || 0 || 1 || 2 || 3 || 4 || 5 || 6 || 7 || 8 || 9 || 10 || 11 || 12 || 13 || 14 || 15 || 16 || 17 || 18 || 19 || 20 || 21 || 22 || 23 24 ||
 * 100+4x || 100 || 104 || 108 || 112 || 116 || 120 || 124 || 128 || 132 || 136 || 140 || 144 || 148 || 152 || 156 || 160 || 164 || 168 || 172 || 176 || 180 || 184 || 188 || ======192196====== ||
 * 25+7x || 25 || 32 || 39 || 46 || 53 || 60 || 67 || 74 || 81 || 88 || 95 || 102 || 109 || 116 || 123 || 130 || 137 || 144 || 151 || 158 || 165 || 172 || 179 || ======186193====== ||

B.)

C.) At the 26th book bid 1 is less than bid 2 bid 1 will be 204 and bid 2 will be 207. I found that by looking at the table and realizing everything and before 200 bid 1 is greater than bid 2 and every value after 200 is less than bid 2

4.1 Follow up

1. For 75 books-> bid 1= 400$ bid 2= 550$ look at the table

2. For bid 1 the greatest number of books that do not exceed 300$ is 50 books and for bid 2 it will be 39 books

3. For what number of books are these two bids equal? At 15 books bid 1and 2 will be 120$ charge each