What is the following quotient 9+sqrt 2/4-sqrt 7

multiply by the conjugate of denominator.

apply formula (a+b)(a-b)=a^2-b^2

Hence final answer is

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!