What is 235 rounded to the nearest ten and why?

I'm confused on this could anyone me and show me what i need to do to solve it.

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.

Shared decision making is always a positive strategy to take