Answer:
she can make servings of lasagna with the amount left over
Explanation:
Given that:
a lunch lady has 4 pounds of lasagna left over.
If she makes 13 - pound servings;
to determine the amount of servings of lasagna can she serve with the amount left over; we have;
=
=
Hence she can make servings of lasagna with the amount left over
The spinal cord and the brain make up the central nervous system, and spinal cord nerves carry most messages between the brain and the rest of the body.
The vagus nerve carries the signal from the brain to the heart.
Antibiotic resistance is a consequence of evolution via natural selection. The antibiotic action is an environmental pressure; those bacteria which have a mutation allowing them to survive will live on to reproduce. They will then pass this trait to their offspring, which will be a fully resistant generation.