I did not understand so I wanted to see if I could get help

Which is the focus of a parabola with equation y2=4x

Meghan has created a diagram of her city with her house, school, store, and gym identified. a. how far is it from the gym to the store? b. meghan also wants to walk to get some exercise, rather than going to the gym. she decides to walk along arc ab. how far will she walk? round to 3 decimal places.

In a timed typing test lara typed 63 words per minute.estimate the number of words she should be able to type in half in hour show your work