(a)[3]
Sami puts $2000 into an account that earns compound interest at $1.8\%$ per year. Calculate the total interest paid to Sami after $3$ years.
(b)[3]
Theresa takes out a loan. She pays it back over one year at $\$54$ each month. The total amount she repays is $8\%$ more than the original loan value. Work out the value of the original loan.