Really need this, it will help alottt

Step-by-step explanation:

In order to solve for and we want to solve for , we want to get m on one side of the equation.

Let’s subtract b from both sides.

Now we can divide both sides by x so we have m on one side of the equation.

Hope this helped!

she would want to sell 10 full-year subscriptions and at least 9 half-year subscriptions to get a total of at least $300. 

i hope this answer you! if you have any further questions or concerns, feel free to ask! : )

step-by-step explanation:

mark brainliest!