What is the volume of this?

What expression is equivalent to 1/2(2+3x-6)

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

Scott’s bank account showed a balance of $750 on sunday. during the next five days, he made one deposit of $140 and numerous withdrawals of $180 each. let x represent the number of withdrawals that scott made. write an inequality that can be used to find the maximum number of withdrawals that scott could have made and maintain a balance of at least $100. do not use a dollar sign ($) in your response.