The distance around the bulletin board would be 20 feet, because you multiply 6ft 2x and 4ft 2x.
Answer:
=> Expand by applying the FOIL method
=> combine like terms
Just turn 20% into a decimal and multiply it by 65 grams, then add that number to 65 grams.
So 20%=.2, therefore 65 multiplied by .2 equals 13. Add that number (13) to 65 and you get 78!
The patient will receive 78 grams of the new dose!
Hope this helps!
The mode is two modes 4, and 5 and the description idk how to do sorry bud.