can someone correct these for me plz.

Question

Simplify by combining like terms.
Problem#32

radical(63) minus 2radical(28) plus 5radical(7)

My answer: 4radical(7)

Find the perimeter of the triangle shown in the figure.
leg...1 = radical (5) + radical (3)
leg...2=radical (5) - radical (3)
Hypotenuse= 4

My answer: 4+2radical(5)

correct.