Respuesta :
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.
[tex]\text{Total number of subscribers this month}=100+30-10[/tex]
[tex]\text{Total number of subscribers this month}=130-10=120[/tex]
Now let us multiply number of total subscribers of this month by 10 to find the amount Kiersten will earn by her online business.
[tex]\text{Kiersten's earnings this month from online business}=120*10[/tex]
[tex]\text{Kiersten's earnings this month from online business}=1200[/tex]
Therefore, Kiersten will earn $1200 this month by her online business.
