Ms. ling bought party hats for the 86 fourth graders at her school. the hats come in packages of 6 how many packages did ms. ling by?

Which speed is the fastest (use 1 mile ≈ 1.6 kilometers)? a. 12 miles/hour b. 18 feet/second c. 19 kilometers/hour d. cannot be determined

You can ride your bike around your block 6 times and the whole neighborhood 5 times in 16 minutes. you can ride your bike around your block 3 times and the whole neighborhood 10 times in 23 minutes. how long does it take you to ride around the neighborhood?

Ratio of circumference to diameter example plz i need to now what it looks like.