Una carpinteria te entrega la siguiente información: 1. Consumo de madera por \( \$ 5.000 .000 \) 2. Remuneraciones del carpintero \( \$ 4.800 .000 \) 3. Consumo eléctrico \( \$ 800.000 \).- el \( 90 \% \) corresponde al taller de carpintería y el \( 10 \% \) restante a las oficinas administrativas y ventas. 4. Comisión por venta \( \$ 250.000 \) El costo de producción que se determina es: (A) \( \$ 10.520 .000 \) (B) \( \$ 10.850 .000 \) (C) \( \$ 10.600 .000 \) (D) \( \$ 8.340 .000 \)

25. You own a custom computer software business. You must invest \( \$ 3,255 \) for computer hardware, and spend \( \$ 2.90 \) to buy and package each disk. If each disk sells for \( \$ 13.75 \), write a system of equations and determine how many disks you must sell to break even. 26. The ballpark needs to make at least \( \$ 15,000 \) from ticket sales. The ticket prices are \( \$ 20 \) for

The principal \( P \) is borrowed at a simple interest rate \( r \) for a period of time \( t \). Find the simple interest owed for the use of the money. Assume 365 days in a year. \( P=\$ 7000, r=4.5 \%, t=18 \) months The simple interest owed for the use of the money is \( \$ \square \). (Do not round until the final answer. Then round to the nearest cent as needed.)

Determine the present value \( P \) that must be invested to have the future value \( A \) at simple interest rate \( r \) after time \( t \). \[ A=\$ 5000, r=2.5 \%, t=6 \text { years } \] The present value \( P \) that must be invested is \( \$ \) (Round up to the nearest cent.)

Suppose that you camed a bachelor's degree and now youre teaching high school. The school district offers teachers the opportunity to take a year off to eam a master's degree. To achieve this goal, you deposit \( \$ 1000 \) at the end of each year in an annuity that pays \( 5.5 \% \) compounded annually. a. How much will you have saved at the end of five years? b. Find the interest.

The principal \( P \) is borrowed at simple interest rate \( r \) for a period of time \( t \). Find the loan's future value, \( A \), or the total amount due at time \( t \). \( P=\$ 38,000, r=6.5 \%, t=5 \) years The future value is \( \$ \square \). (Simplify your answer. Type an integer or a decimal.)