Write a equation for the nth term: 2, 4, 8, 16

What does x = in this equation x+3+2x=x+5

Kayla has a $500 budget for the school party.she paid $150 for the decorations.food will cost $5.50 per student. what inequality represents the number of students,s, that can attend the party?

To determine the number of deer in a forest a forest ranger tags 280 and releases them back