A gear is rotated 6.5 times. How many radians has it been rotated?

What is the prime factorization of 230

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

Which word in the sentence below is an interrogative pronoun? who is picking us up from school? whousisfrom