View the frequency distribution graph about people who regularly use a specific cell phone app. which two age groups are least likely to use this app? a. 0-9 and 10-19 b. 0-9 and 60-69 c. 10-19 and 20-29 d. 10-19 and 50-59

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

How does the nervous system affect the excretory system?

9. the history of life on earth is recorded in