Compound interest-step by step please!

Question

I need step by step instructions for some mymaths homework on compound interest. 

 

For example- 

Nishi invests £3700 at 5% interest per year.

Work out how much she will have altogether after:

2 years- £

5 years- £

7 years- £

10 years- £

 

 

Thankyou! step by step instructions plus an example of how to work it out helps me the most:)

Answer 1

This is kompound interest

formula: fyucher value=(start $)*(1+r)^numyeers...for kompound evree yeer

r=interest rate...5% become 0.05....(1.05)^numyeers

eezee & strateforward if yu hav a sientifik kalkulater that du exponentials

in yer kase, start $=3700

2 yeers...(1.05)^2=1.1025

5 yeers...(1.05)^5=1.27628156

10 yeers...(1.05)^10=1.62889462

Answer 2

This is compound interest

formula: fyucher value=(start $)*(1+r)^numyeers...for kompound evree yeer

r=interest rate...5% become 0.05....(1.05)^numyeers

eezee & strateforward if yu hav a sientifik kalkulater that du exponentials

in yer kase, start $=3700

2 yeers...(1.05)^2=1.1025

5 yeers...(1.05)^5=1.27628156

10 yeers...(1.05)^10=1.62889462