Which statement about sound is true because it is a mechanical wave?
it can travel through the vacuum of space.
it must travel through a medium.
o
it can travel only through air.
o it cannot travel through a medium.

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.

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

Can someone me with my math problem pls my teacher is on my back about this