Acircle has an area of 50 square meters. which answer is closest to the measure of its diameter? 20 ! i need a good answer its a pre test question

In a young single person's monthly budget, $150 is spent on food, $175 is spent on housing, and $175 is spend on other items. suppose you drew a circle graph to represent this information, what percent of the graph represents housing?

Opposite angles in a parrellelogram are

Which is the scale factor proportion for the enlargement shown?