Four tenths is equivalent to how many hundredths

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)

What is the approximate value of  q  in the equation below? –1.613–1.5220.5853.079

What adds to be the bottom number but also multiplies to be the top number with 8 on the bottom and 15 on top