C. How many doughnuts are in 7.80 dozen doughnuts

93.6 becasue there are 12 donuts in a dozen. So you multiply 12 by 7.80.

answer:

step-by-step explanation:

here, the total dishes = 10

dishes having meat = 3 ( chicken, meatloaf and hamburger )

thus, the probability of having meat on the chosen dishes = number of dishes having meat / total dishes

=

therefore, the probability of not having meat = 1- the probability of having meat on the chosen dishes

=

=

=

⇒ option b is correct.

x = 3 ± √(5+y)