Well i have to say is that PEMDAS exponents first. Hope this helps.
Answer:

Step-by-step explanation:
m²-2mn+n²-9r

Answer:
A. It reflects the graph across the x-axis.
Step-by-step explanation:
See the attachment. Each vale of y is changed from a positive to the same negative value, resulting in the reflection.
Recall that the volume of a regular prism is given by the area of the base times the height.
Given that the base of the prism is a regular pentagon with an apothem of 2.8 centimeters.
The pentagon consist of 5 isosceles triangles with the apothem as the height and the side of the pentagon as the base.
Recall that the are of a triangle is given by 1/2 base times height.
Thus the area of of the pentagon base of the prism is given by

Therefore, the volume of the prism is given by
Answer:
3/16
Step-by-step explanation: