There is a sales tax of $21 on an item that cost $217 before tax. a second item. cost $93 before tax. what is the sales tax on the second item?

If you shift the linear parent function, f(x)=x, up 13 units, what is the equation of the new function?

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?

Lines a and b are parallel. what is the value of x? -5 -10 -35 -55