PLEASE ANSWER THESE QUESTIONS PLZ ILL GIVE BRAINLIEST ANSWER

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

Y=(x+3)(x-4)(x+1)^2 sulutions? multiplicity?

*segment an is an altitude of right ? abc with a right angle at a. if ab = 2root 5 in and nc = 1 in, find bn, an, ac.