D) 36x^2-81
both 36x^2 and -81 are perfect squares
difference means subtraction
A ton is equivalent to 1000 pounds so:
the elephant weighs 5000 pounds
5000-570= 4430
The elephants weighs 4430 pounds more.
Answer:
Vertical.
Horizontal.
Diagonal (often called "cross-products")
Step-by-step explanation:
The first quartile would be 48.5
