Answer:
x = 19
Step-by-step explanation:
(5x+4)+(x-2)+(3x+7) = 180
5x+4+x-2+3x+7 = 180
9x+9 = 180
9x = 171
x = 171/9
x = 19
Answer: False
"Depreciating" means "going down", so the value is decreasing. The value of A will always be smaller than C. For example, if the item is worth $100 today and it drops to $80, then it depreciates in value. In this example, C = 100 and A = 80 so A > C is false
Answer: 
Step-by-step explanation:
For this exercise you need to use the following formula to solve this exercise, which is used to calculate the voume of a cone:

Where "r" is the radius and "h" is the height of the cone.
In this case, based on the information given the exercise, you can identify that:

Knowing those values, you can substitute them into the formula:

Finally, evaluating, you get the following result:

Therefore,
will fit in the cone.
The dimensions are 60 yards by 100 yards
Proof:
Let the wdth be x and the length be x+40
x(x+40)=6000
x²+40x=6000
x²+40x-6000=0
use the quadratic formula
x= -40+ or - √40²-4*1*-6000
x= 60, -100
but distance but be positive so the dimensions are 60 yards by 100 yards
Answer:
180
Step-by-step explanation: