It was reported that about 80% of airline tickets-nearly $65 billion worth last year are issued over the internet. what were the total sales of airline tickets last year? round to the nearest billion

Choosing a booth location: your manager is sending two people to work at the conference. she wants a booth that will give your company good visibility for no more than 35% of the total budget ($3000). the conference coordinator just told you there are only five booths left. which booth will you choose? write the inequality that shows how much money you can spend on the booth simplify the inequality that shows how much money you can spend on the booth.

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')

In trapezoid abcd, ac is a diagonal and ∠abc≅∠acd. find ac if the lengths of the bases bc and ad are 12m and 27m respectively.