Aposter shop will enlarge a photograph into a poster. given the size of the photograph and the length of the poster, what is the constant of proportionality? what is the width of the poster, x? a. k = 4.5, 54 cm b. k = 3.5, 42 cm c. k = 6, 96 cm d. k = 6, 72 cm

This size running track is usually called a 400 meter track. however if a person ran as close to the inside as possible on the track they would run less than 400 meters in one lap. how far away from the inside border would someone have to run to make one lap equal exactly 400 meters