Henry scored 32 marks out of 80. Find her Pertentage score

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?

Plzz ! if you were constructing a triangular frame, and you had wood in the length of 4 inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no? = explain your mathematical thinking/show your work:

Which expression is equivalent to the square root of 2 multipllied by 5 divided by 18