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 them and have to show my work am hoping that someone can help me please and thank you.