> Anybody good at maths here?

Anybody good at maths here?

Posted at: 2014-12-05 
1) (100% - 4%) of x is 354

96% of x is 354

0.96x = 354

x = 354/0.96 = 368.75

2) Simple or compount interest? If compound,

x = 4000(1.04)^4 = 4679.43

If you are then please could you help me with these questions below?

1) In 2006 Nick raised £354 for charity. This was 4% less than he raised in 2005. How much did he raise in 2005?

2)Burt invests £4000 in a savings account. If the interest rate is 4 % per annum how much interest will he have after 4 years?