For the compound interest qn,use the compound int formula (should be in formula sheets during exams).

First find out the yearly interest rate which is 2% x12. Convert that to decimal, as per the formula.

Then calculate how many months the loan is for,which is 10 months. Typically t should be in years and n is the num of times interest is compounded per year

Since interest is compounded monthly. It would be compounded 12 times per year. N =12.
10 months is 10/12 = 5/6 of a year. Which is t.

Then just compute. :)