Help with science please ill mark you brainliest fast

The table represents a function. what is f(-2)? a.-3 b. -1 c.1 d.3

Math i have no idea how to do a and b

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