Can anyone please help me? I’ve tried to do this but I just can’t figure it out. I would really appreciate it if someone could give an answer and explain to me how they got it :) PLEASE HELP I NEED HELP ITS DUE TODAY!!!

Which statements about these triangles is true

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

Afactory buys 10% of its components from suppliers b and the rest from supplier c. it is known that 6% of the components it buys are faulty. of the components brought from suppliers a,9% are faulty and of the components bought from suppliers b, 3% are faulty. find the percentage of components bought from supplier c that are faulty.