What are three equivalents expressions of
1. (X+3)^2-4

Is the orthocenter of a triangle on the inside ?

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?

2x minus y equals 6, x plus y equals negative 3