47. ¿Qué porcentaje de diferenca habia entre el salario promedio de los trabajadores en Es- paña y el salario promedio de los trabajadores de Estados Unidos, en 1973? A. \( 30 \% \) B. \( 60 \% \) C. \( 50 \% \) D. \( 55 \% \)

laptop has a listed price of \( \$ 520.99 \) before tax. If the sales tax rate is \( 6.75 \% \), find the total cost of the laptop with sales tax included. ound your answer to the nearest cent, as necessary. \$ \( \square \)

2 Jane sells jewellery. Her weekly commission is based on a sliding scale of on the first \( \$ 2500 \) of her sales, \( 5 \% \) on the next \( \$ 5000 \) and \( 1 \% \) thereafter. She also gets a weekly retainer of \( \$ 500 \) Jane's weekly commission

A man invests his savings in two accounts, one paying 6 percent and the other paying 10 percent simple interest per year. He puts twice as much in the lower-yielding account because it is less risky. His annual interest is 8250 dollars. How much did he invest at each rate? Your answer is total in the account paying 6 percent interest is total in the account paying 10 percent interest is

\begin{tabular}{ll|l|}\hline A. UNA SERIE DE PAGOS MESUALES SE INICIA HOY CON UN AHORRO DE \( \$ 50.000 \) EN EL MES 1 DE \( \$ 60.000 \), EN \\ EL MES \( 2 \$ 70.000 \) Y ASI SUCESIVAMENIE HASTA LLEGAR A EL MES 23. PARA UNA TASA DE INTERES DEL \( 32 \% \) \\ \hline\end{tabular}

Find the present value of \( \$ 7,000 \) to be received in 5 years, if money may be invested at \( 7.2 \% \) with interest compounded continuously. The present value is \( \$ \square \). (Round to the nearest cent as needed.)