Me out on this. it’s really important.

Multiply −2x(6x^4−7x^2+x−5) express the answer in standard form. enter your answer in the box.

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

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.