(5, 8) has two positive numbers. In case you don't remember
Quadrant I: Both positive
Quadrant II: Negative x value, Positive y value
Quadrant III: Both negative
Quadrant IV: Positive x value, Negative y value
5 and 8 are Both Positive, therefore it is in quadrant I.
Answer:

Step-by-step explanation:

P=2L+2W
P-2W=2L
P/2-W=L
L=P/2-W
Answer:
240 m
Step-by-step explanation:
Volume is just length times width times height, and a rectangular prism is like a 3D rectangle. When you multiply 5x6x8 you get 240
Hope this helps :)