Abusiness has $11,080 to spend on new laptops and tablet computers for its salespeople. the laptops cost $515 each. the tablets cost $285 each. the business wants each salesperson to have either a laptop or a tablet. there are 30 salespeople. how many of each type of computer should the business buy?

9 laptops and 21 tablets
11 laptops and 19 tablets
19 laptops and 11 tablets
21 laptops and 9 tablets

Well if you want to use all the money we would need to find the answer by adding all the money that is being used 
let's start with the first choice]
choice 1: 9(515)+21(285)=10,620 dollars (under budget)
choice 2:11(515)+19(285)=11,080 dollars (at budget)
choice 3:19 (515)+11(285)=12,920 dollars (over the budget)
choice 4:21(515)+9(285)=13,380 dollars (way over budget)
Since our budget is 11,080 choice would be the best option because it has the same amount of money as our budget making this the best deal.
choice 2 11 laptops and 19 tablets :)