math??

Question

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Answer 1

18)

The population of a town is in

The population increases at a rate of every year.

Hence,

Find what will be the population of town in

Compound interest formula

Consider

Since, the population of town in

19)

Invest money in account

Annual interest rate of

Find how much money will be in account the after 7 years.

Continuous compound interest formula

Consider

After 7 years money in account

Answer 2

21)

The parent function of the graph of

Observe the graph,

The graph is stretched by factor of 3 units.

The graph the function is

Graph the functions.