Which set of side lengths form a right triangle?

14 m, 20 m, 25 m
3 ft, 6 ft, 5 ft
7 cm, 8 cm, 10 cm
10 cm, 6 cm, 8 cm

Ivan began dividing g2  – 6 by g + 1, noting that . he started by placing g in the quotient, as shown below. what is g2  – 6 divided by g + 1? g –  1 –  g + 1  – g  –  7 + g  –  5  + 

Factor the expression using gcf 9b+45

Aline passes through the point (–7, 5) and has a slope of 1/2 which is another point that the line passes through?