Answer: 51.75$
Step-by-step explanation: First, turn 15% into the decimal 0.15, then multiply by 45, which equals 6.75. Now add 6.75, which is the amount the waitress got tipped to 45, which equals 51.75$ total.
Answer: 30 students per bus
Step-by-step explanation: 99-9=90
90/3=30
30 students per bus
Answer:
d
Step-by-step explanation:
a) 4x +6
Add up all the sides to calculate perimeter