If you save $25 a month, how many months must you save to buy a stereo costing $225

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

Precalculus question, image attached.

Julie begins counting backwards from 1000 by 2’s and at the same time tony begins counting forward from 100 by 3’s.   if they count at the same rate, what number will they say at the same time?