How did the judge find out about the rotten milk-please help I have found a couple already

Me find the measure to side a and the process to solve the problem you appreciate it : )

If you invest 1,500 today in a bank that gives you a 5 percent annual interest rate, which of these items can you buy in two years? a. electronics worth $1,650 b.fitness equipment worth $1,700 c.a holiday package worth $2,000

The sum of five and a number n is at least 12