How much would you have in the bank if you invested in this annual rate of compound interest? £900 at 3% for 4 years

You can use the formula A=P(1+r/n)^nt
A=the future value of the starting amount
P=the starting amount
r= the interest rate number of times the interest is compounded per year
t=the number of years the amount is loaned for
A=900(1+0.03/1)^1x4
A=1012.95
I hope this helps.  Also if I am wrong our did not fallow the question completely please let me know in the comments so that I can try to fix it .

It is b as the correct answer is 0.088, you are able to work these out on a calculator or without a calculator if you type in the exact sum that is given for harder questions like these!