Yes y=3.6 is a direct variation
The area of a rectangle is given by the product of its dimensions.
If this rectangle has a length of 2x + 7 and a width of x + 4, its area is:

The perimeter is the sum of all side lengths, so we have:
Step-by-step explanation:

Answer:
its 2
Step-by-step explanation:
Answer:
No =
Step-by-step explanation:
3(3+4)=21
3³=27
3x3x3 = 3³