Answer :
Answer:
20 keyboards and mice, 10 cameras.
Step-by-step explanation: They need the same number of keyboard and mice, and they want to get half the amount of cameras they do keyboard and mice. They have a budget of $1500 so 20 keyboards and mice as well as 10 cameras is the most optimal purchase.
30*20=600
20*20=400
50*10=500
600+400+500=1500