Not sure what this is called but how is this solved its related to angles of a circle

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

Shannon drove for 540 minutes. if she traveled 65 miles per hour,how many total miles did she travel?

Determine whether the question is a statistical question. explain. 1. what is the eye of sixth grade students? 2. at what temperature (in degree fahrenheit) does water freeze? 3. how many pages are in the favorite books of students your age? 4. how many hours do sixth grade students use the internet each week? you!