Businesses limit or space out their promotional messages for which of the following reasons?

Based on the supply and demand theory, why do medical doctors earn higher wages than child-care workers?

Who has summer school : ( because i do : (

Consider 8.5 percent swiss franc/u.s. dollar dual-currency bonds that pay $666.67 at maturity per sf1,000 of par value. it sells at par. what is the implicit sf/$ exchange rate at maturity? will the investor be better or worse off at maturity if the actual sf/$ exchange rate is sf1.35/$1.00