Answer:

Step-by-step explanation:
<u>Step 1: Find the a, b, and c values</u>


The a value is: 3
The b value is: -4
The c value is: -20
Answer: 
I believe the answer is d
Answer: 78.064 cubic meter
Step-by-step explanation:
volume of a cuboid=length × breadth × height.
=5.6*4.1*3.4
=78.064 cubic meter
Get like terms together. you might have to move across the equals sign
3x-x=-6+82
2x=76
x=38
Length (l) = 13 feet
Width (b) = 9 feet
Perimeter = 2(l + b)
= 2(13 + 9)
= 2×21
= 42 feet