Courtney walks 3 laps around a 3-mile track. [1 mile is 5280 feet]. How far does she walk?

Answer these questions showing your work plz

How can the correlation in the scatter plot graph below best be described? positive correlation negative correlation both positive and negative no correlation

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'