Which side lengths form a right triangle? Choose all answers that apply:
(Answers in picture)

If f(x)=x+7 and g(x)=1/x what is (fog)(x)

Which of these side lengths could form a triangle a) 2 cm , 2 cm , 4 cm b) 3 cm , 5 cm , 10 cm c) 3 cm , 4 cm , 5 cm d) 4 cm , 8 cm , 15 cm

What is 6/10 rounded to the nearest half