Sydney is buying balloons for a birthday party. Which store charges the least per balloon?(1 point)
She can buy 16 balloons at Parties R Us for $4.80.
She can buy 12 balloons at Balloon Land for $3.84.
She can buy 9 balloons at Balloons O Rama for $3.69.
She can buy 15 balloons at Party World for $4.35.