Answer:

Step-by-step explanation:
Given


Required

This is already stated in the question as:

Answer:
2d+3 dollars
Step-by-step explanation:
the second one 2d+3
<span>Total number of problems Nicole will have completed: y
</span><span>Number of nights she studies: x
</span><span>
She has already completed 20 practice problems:
When x=0, y=20
</span>She plans on completing 6 more problems each night:
y=20+6x
y=6x+20
Please, see the attached graph.
Thanks.
Yes, because there is a corresponding amount of teachers per student.
The surfaces are the faces of the prism. The vertices are the points of the prism, where three sides intersect. You can also call them corners. To find the volume, you multiply length and width and height.