Describe whether each of the following is linear or not linear. in each case, explain your answer.

a. 3x+4y+2=0

b. x= 2,4,6,8 y=1,5,15,30

c. you have a secret that you tell to one person. every hour, each of the people that know the secret tells one person. the number of people who know is n, and t is the number of hours since you told the first person. is n a linear function of t?

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

Evaluate the expression. (9 + 5)(3 + 2)0

Abank manager wants to encourage new customers to open accounts with principals of at least $2,500. he decides to make a poster advertising a simple interest rate of 3%. what must the principal be if the bank manager also wants to advertise that one can earn $10 the first month? can the poster correctly say, "open an account of $2 comma 500 and earn at least $10 interest in 1 month! "?