All of these but the nosebleeds seem correct, but something much stronger like cocaine can cause nosebleeds.
But if you want just ONE answer 'impaired memory and learning' seems like the best one to pick because that is one of the most noticeable signs of marijuana use.
This website talks about the symptoms of use, I trust its accuracy:
https://www.webmd.com/mental-health/addiction/marijuana-use-and-its-effects#1
Answer:
$229.50 will be charged to the patient. the payer will be charged $535.50
Explanation:
785-20=765
765 x 30%= 229.50
765 - 229.50= 535.50
They tend to get hungry every four hours.
Hope this helps :)