You are assigned a computer-generated 4 digit password to access your new voicemail account. If the digits can be repeated, how many possible passwords are there?

What is the nth term rule of the linear sequence below? 27 , 25 , 23 , 21 , 19 , . .

Agreeting card company can produce a box of cards for $7.50. if the initial investment by the company was $50,000, how many boxes of cards must be produced before the average cost per box falls to $10.50?

Astock has a 25% probability of increasing by $10 and a 75% probability of decreasing by $5. what is the stocks expected increase or decrease?