What's bigger 9/10 or 4/5

Me write an equation for the interior angles of this triangle that uses the triangle sum theorem

S-7< 3 i need answering this problem someone asap answer

Which of the following best describes the graph below? + + 2 + 3 + 4 1 o a. it is not a function. o b. it is a one-to-one function. o c. it is a many-to-one function. o d. it is a function, but it is not one-to-one.