Which of the following is a linear function? one over three x = y − 3 y = x3 + 2 y = 6x2 y = two over three x

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?

Ineed to know the answer to this algebra question.