please help me with explanation and no links!

Answer:
(q°r)(2)=7
(r°q)(2)=3
Step-by-step explanation:
(q °r)(2)= q(r(2))= q([tex]\sqrt{2+2}[/tex])=q([tex]\sqrt{4}[/tex])=q(2)=2^2+3= 7
(r°q)(2)=r(q(2))=r(2^2+3)=r(7)=[tex]\sqrt{7+2}[/tex]=[tex]\sqrt{9}[/tex]=3