The temperature of a city is recorded at midnight on the last days of four consecutive months as -11°C, 5°C, - 8 °C and 15°C. Find the difference between the maximum and the
minimum temperature.

Sara goes on a slingshot ride in an amusement park. she is strapped into a spherical ball that has a radius 3*10^2 of centimeters. what is the volume of air in the spherical ball? use this formula: volume of a sphere=4/3pi,r^3 , where r is the sphere’s radius.