The Purplemath Forums

Hello there. I am new to this site was referred by a friend. I am having trouble with the last 3 math problems and have to show my work. (-1/5) and the 2 is litlle up by the parathensis the square root of 10+15 (-8)(-5)+(7) little 2 up in the corner I have tried to get these answers and can't get th...