David borrowed \( \$ 6000 \) from a lender that charged simple interest at an annual rate of \( 7 \% \). When David paid off the loan, he paid \( \$ 1680 \) in interest. How lo was the loan for, in years? If necessary, refer to the list of financial formulas.

hando needs to buy a new Tablet. The new Tablet costs R7 990 . hando does not have the full amount of money available, so she tas decided to buy it using a hire purchase agreement. The terms of he agreement are as follows: \( 15 \% \) per annum simple interest 48 monthly payments Monthly processing fee of R15,50 Determine the monthly amount payable, including interest and fees Sn her \( 29^{\text {th }} \) birthday, Lerato invested R5000 on the Johannesburg stock Exchange. Her shares increased in value by \( 20 \% \) compounded annually. How much would her investment be worth her \( 60^{\text {th }} \) birthday?

3. In un reparto di un'azienda di cosmetici sono presenti tre linee di prodotti: creme, deodoranti e saponette. Su tali prodotti vengono eseguiti controlli di qualità, attraverso specifici test nei laboratori chimici, con un costo settimanale di \( € 4.550 \) \( € \). Il costo viene suddiviso tra le tre linee in proporzione alle ore di produzione e a. numero di prodotti lavorati. I dati sono i seguenti: - Linea creme: ore di produzione 35 ; pezzi lavorati 6.300 - Linea deodoranti ore di produzione 25 ; pezzi lavorati 9.800 - Linea saponette ore di produzione 10 ; pezzi lavorati 3.000 uanto ammonta la quota di costo del controllo di qualità a carico di ciascuna linea?

Oppgave 2 Når Oslo Børs stenger for dagen er en type aksje verdt 42 kr . I løpet av dagen har aksjen økt i verdi med \( 20 \% \). Hvor mye var aksjen verdt da Oslo Børs åpnet denne dagen?

407. Bank goýumçylara her ýylda \( 2 \% \) girdeji berýär. Banka 1) 20000 man goýan goýumçy; 2) 30000 man goýan goýumçy bir ýylda näçe girdeji alar?

9.1 How much must Peter invest now, at \( 9,5 \% \) p.a. compounded quarterly, if he wants to have \( R 40000 \) after 6 years? Convert \( 20 \% \) p.a. effective to a nominal rate, compounded monthly. Mike opens a savings account with a deposit of \( R 60000 \). He leaves the money in the account for 7 years. The interest rate for the first 3 years is \( 2,7 \% \) p.a. compounded quarterly and for the remaining 4 years it is \( 3,2 \% \) p.a. compounded monthly. How much money will be in Mike's savings account at the end of the 7 -year period? Sarah deposited \( R 6000 \) into her bank account 10 years ago. Six years ago, she withdrew \( R 2000 \). Interest is calculated at \( 7,6 \% \) p.a. compounded monthly. How much money is in the account at present?