Two cyclists, A and B, are going on a bike ride and are meeting at an orchard. They left home at the same time. Functions A and B give their distance from the orchard, in miles, after riding for x hours. The functions are defined by these equations.
A(z) - 48.5 - 213
B(z) - 42 - 16.83
Is there a time that both cyclists will be the same distance from the orchard?
How much time has past when they are the same distance?
How far away are they when they are both the same distance?

this answer was editing it cause i couldn't delete!

the present continuous is a verb tense which is mainly used to indicates that an action is in progress at the moment of speaking.  

it is formed using: person + verb to be (am/is/are) +verb + - ing form  

example: i am studying at this moment .

in addition, the present continuous is also used in order to express things that will or will not happen in the near future.

example: i am having dinner with some friends tonight.

the speaker sometimes   uses it   to express that an action is repeated and it causes irritation on the part of the speaker

example: my sister is constantly complaining about everything.

we need more information in order to answer.