Idon't know how to do this.

provide reasons for the proof.

given: angle 2 = angle 4
and angle 2 and angle 3 are supplementary
prove: angle 1 = angle 3

Opposite angles are the same.

Step-by-step explanation:

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!