Answer:
80 units.
Step-by-step explanation:
If it is a rectangular prism, then it is 5×2×8, which is 10, from the 5×2 and 8. 10×8 is 80. So the final answer is 80 units cubed. Hope this helps! If you are still confused, please comment so I can help you!
Rectangular Prism: 80 units^3
V = lwh = 5(2)(8) = 80 units^3
Triangular Prism: 40 units^3
V = = = = 40 units^3
20
y^2+4y-1=(-7)^2+4(-7)-1=(-7)(-7)-28-1=49-28-1=21-1=20
Answer: Number 3 : 20/21
Number 4: 1/6
just graph it mate
