I really need help getting started on these Excel problems. Thanks!

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,

Line segment eg is partitioned by point f in the ratio 1: 1. point e is at e (0, 4), and point f is at (1, 3). what are the coordinates of point g? (−1, 5) (2, 2) (3, 1) (4, 0)