If you want to double your investment of $1,200 using a savings account with a 6% annual interest rate compounded annually, how many years will it take?

You invest $2,500 in an account that earns 4% interest compounded quarterly. How much will the investment be worth after 5 years?

Calculate the gross profit margin for an item that cost the business \( \$ 12 \) and sold for \( \$ 30 \). Gross Profit = \( \$ 18 \) Gross Profit Margin = [?]\%

Calculate the gross profit margin for an item that cost the business \( \$ 20 \) and sold for \( \$ 80 \). Gross Profit \( =\$ 60 \) Gross Profit Margin \( =[?] \% \)

الف) . . זا دلار چند پوند است؟ (با راه حل) ب) رابطه بين دلار و پوند را روى نمودار نشان دهيد.

A perfectly competitive firm has the following information in the short run. Total cost equation is given as \( T C=3 q^{2}+20 q+75 \); and the firm is currently producing 10 units of output which is the profit maximizing output level. 1. Find the profit maximizing price at which 10 units will be sold. 2. Find the level of profit or loss the firm is making in the short run. 3. What is the firm supply curve (equation)?