Solving with inequalities

15c≤200

Explanation:

If each case costs 15 gold coins, then we can say that the total cost of all the cases bought is 15c. We also know that whatever we spend has to be at least less than 200 gold coins. So, we can use the inequality 15c≤200 to represent this problem.

in contrast, the biological controls are self-sustaining, inexpensive and very effective once established. biological control could be used on thousands of golf course acres, improving their biodiversity and quality as wildlife habitat. in the process, the golf industry will be shown to be leaders in an environmental stewardship program of benefit not only to the lands they manage but also to the watersheds in which they exist.

the term is einsatzgruppen