The tuning of another guitar is less accurate than the guitars in Exercise 1. Give an example of a possible reading on the tuner for this guitar. Explain your reasoning.

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

At which value in the domain does f(x) =0?

Liz is shipping a package to her friend.the maximum weight of a medium flat-rate box is 20 pounds,including the box which weighs 6 ounces.write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.