A used phone that I really want online costs $90.50 and then Ebay will charge 4% tax. What is the amount of tax that I will have to pay for the phone?

For the following sequence determine the common difference (if it is an arithmetic sequence) or the common ratio (if it is a geometric sequence).

Which graph corresponds to the function f(x) = x2 + 4x – 1?

Okay so i didn't get this problem petro bought 8 tickets to a basketball game he paid a total of $200 write an equation to determine whether each ticket cost $26 or $28 so i didn't get this question so yeahyou have a good day.