All parabolas?
explanation:
Answer:

Step-by-step explanation:


the first one that is x-99....... goes to the second answer box
the second that is x-51......... goes to the first answer box
the third that is 150+x......... goes to the fourth answer box
the fourth that is 69-x......... goes to the third answer box
Answer:
$1200.
Step-by-step explanation:
We have been given that Kiersten runs a website that helps people learn programming. Every month, Kiersten receives a subscription fee of $10 from each of the subscribers to her website.
First of all we will find the number of subscribers for this month.


Now let us multiply number of total subscribers of this month by 10 to find the amount Kiersten will earn by her online business.


Therefore, Kiersten will earn $1200 this month by her online business.