Hasan plans to choose a book from a section of the store where everything is \( 25 \% \) off. He writes the expression \( d-0.25 d \) to find the sale price of the book if the original price is \( d \) dollars. Bella correctly writes another expression, \( 0.75 d \), that will also find the sale price of the book if the original price is \( d \) dollars. Use the drop-down menus to explain what each part of Hasan's and Bella's expressions mean.

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?

With reference to Question 8 above, the measure of money that will not be immediately affected by the above action by China's central bank is: a) M1 b) M2 c) M3 d) Quasi money

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?

\( \begin{array}{ll}\text { 2) } 6,5 \% \cdot y=3,3 ; & \text { 4) } \frac{3}{4} \% \cdot y=3 \frac{1}{2}\end{array} \begin{array}{l}\text { 407. Bank goýumçylara her ýylda } 2 \% \text { girdeji berýär. Banka 1) } 20000 \\ \text { man goýan goýumçy; 2) } 30000 \text { man goýan goýumçy bir ýylda näçe girdeji }\end{array} \)

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