Who can save money to buy a house?

If \( x \) represents the number of items produced, (a) write a cost function, (b) find a revenue function if each item sells for the price given, (c) state the profit function, (d) determine analytically how many items must be produced before a profit is realized (assume whole numbers of items), and (e) support the results of part (d) graphically. The fixed cost is \( \$ 400 \), the cost to produce an item is \( \$ 10 \), and the selling price of the item is \( \$ 30 \). (a) The cost function is \( C(x)=\square \). (Simplify your answer. Do not factor.)

3. Dos personas que viven en España planean pasar sus vacaciones en Inglaterra. contactaron una agencia británica que les ha cotizado los siguientes servicios: (valor 3 puntos) Alojamiento, vuelo España -Inglaterra ida y vuelta, costo de gestión de la agencia, alimentación por un valor de 2.300 libras por persona a) Sabiendo que el tipo de cambio de 1 euro = 0,80 libras esterlinas, ¿cuál es el precio total del paquete en euros b) si el tipo de cambio estuviera en 1 euro = 0,95 libras, y si fuera 1 euro = 0,65 libras Calcular la devaluación del euro en cada caso si tomamos como tipo de cambio inicial el punto A. exnliaue el resultado

How much would you need to deposit in an account now in order to have \( \$ 2000 \) in the account in 10 years? Assume the account earns \( 6 \% \) interest compounded monthly. Round to the nearest cent.

The sales tax rate for the state of Washington was \( 8.1 \% \). What is the state sales tax on a \( \$ 2,600 \) car in Washington? \$ What is the final cost of the car, including tax? \$

Today - Solve exponential equations in context Rachel deposited \( \$ 1,000 \) at \( 2.8 \% \) annual interest, compounded monthly. In how many years, to the nearest tenth of a year, will she have \( \$ 2,500 \) in the account?