Urgent help needed - exam next week

How do I solve these?

P.S. the are in revers order sorry

Hi Sarah
for b(ii) you need to use this formula (which is on your formula sheet)

The rearrangement is as follows

I will send worked solutions for your other questions soon
I do hope this helps

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Hi Sarah
here is the worked solution to the first part of the problem

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Hi Sarah
to solve part c you need to be able to reverse the power of 11, you do this by finding the 11th root or raising to 1/11, see my worked solution to follow

the rate is 6.5%
please let me know if you need any further help

All the best
Mrs H

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