20 POINTS! Please help, best answer will recessive brainliest answer points as well as 5 stars and a thank you. :)

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8

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?

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2