What I’d the equation of a line that is perpendicular to -x+3y=9

What is the best reason for jacinta to have a savings account in addition to a checking account

You and a friend went to the movies. you spent half your money on tickets. then you spent 1/4 of the money on popcorn, $2 on candy, and $3 on a soda. if you have $1 left, hiw much money did u take to the movies?

Which coefficient matrix represents a system of linear equations that has a unique solution ? options in photo*