Given the line segment AB = 28 cm and a point C on directed line segment AB that partitions AB into the ratio 3 to 1, find the lengths of line segments AC and CB. 1. AC = 14 cm, CB = 14 cm

2. AC = 21 cm, CB = 7 cm

3. AC = 22 cm, CB = 6 cm

4. AC = 7 cm, CB = 21 cm

The population of a small rural town in the year 2006 was 2,459. the population can be modeled by the function below, where f(x residents and t is the number of years elapsed since 2006. f(t) = 2,459(0.92)

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?

Alex took his brother to a birthday party. the party was scheduled to last for 1 and 3/4 hours but they stayed for 4/5 of an hour more. how long did she stay at the party?