Suppose that \( \$ 58,000 \) is invested at \( 5 \frac{1}{2} \% \) interest, compounded quarterly. a) Find the function for the amount to which the investment grows after \( t \) years. b) Find the amount of money in the account at \( t=0,4,6 \), and 10 years. a) The function for the amount to which the investment grows after \( t \) years is \( A(t)=\square \) (Simplify your answer. Type an expression using \( t \) as the variable.)

the amount obtained at the end of second year. (b) interest for third year. ad the compound interest on 1000 at \( 8 \% \) per annum for \( 1 \frac{1}{2} \) years while the interest is compounded arly.

During a sale at Samsung, all items were marked \( 20 \% \) off. If a Samsung Galaxy Zis R28 999,00 after discount, calculate the original price of the phone.

Questăo 3 Um investimento é realizado em juros compostos a uma taxa de \( 12 \% \) ao ano. Caso seja investido 15000 reais por 2 anos, quanto será obtido em juros neste investimento?

A family is saving for their child's education. They want to have \( \$ 80,000 \) eighteen years from now. a) How much do they need to deposit each month into an account earning \( 7.2 \% \) interest compounded monthly? Round your answer to the nearest cent.

Voorbeeld 57 Nkosinathi het R6000 belê, en dit het geakkumuleer tot R10 000 oor 3 jare. Bepaal die jaarlikse rentekoers as ' \( n \) persentasie, indien die belegging enkelvoudige rente verdien het. Benader jou antwoord tot een desimale syfer.