Sydney is buying balloons for a birthday. 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 balloons at Balloon O Rama for $3.69. She can buy 15 balloons at Party World for $4.35.

To determine which store charges the least per balloon, we need to calculate the price per balloon for each store.

For Parties R Us: $4.80 ÷ 16 balloons = $0.30 per balloon
For Balloon Land: $3.84 ÷ 12 balloons = $0.32 per balloon
For Balloon O Rama: $3.69 ÷ 1 balloon = $3.69 per balloon
For Party World: $4.35 ÷ 15 balloons = $0.29 per balloon

Therefore, Party World charges the least per balloon at $0.29.