Fu Haifeng of China set a badminton world record with a smash of 332 kilometers per hour. A kilometer is about 5/8 mile. What is the speed in miles per hour, to the closest whole number?

Amonument at a park is in the shape of a right square pyramid. a diagram of the pyramid and its net are shown. what is the surface area of the monument? enter the answer in the box. m²

What is the volume of the sphere shown below with a radius of 3?

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.