A=LW
192=(13+x)((9+x)
192=117+22x+x^2 (subtract 192 from both sides)
x^2+22x-75+0 (factor)
(x+25)(x-3)=0
so x=-25 or 3
Check work
since we are adding x it can only be the positive solution so x=3 so the new dimensions are:
L=13+3=16m
W=9+3=12
check: 16*12=192 so the answer is correct hope this helped
This doesn't have enough information. it spend on ages, how many children per generation, if direct bloodlines only or adoption count, half relatives, etc.
1) The set of elements is,
10n where n € {.....,-3,-2,-1,1,2,3....}
Not sure if the 2nd question is complete.
Answer:
(1) 23.55mm³
(2) 340.17in³
Step-by-step explanation:
Volume of a cone is: 
'r' - radius
'h' - height
<h3>Cone 1:</h3>
The height of Cone 1 is 10 mm. The Diameter of Cone 1 is 3mm.
Radius is half the Diameter.

The radius is 1.5 mm.

The volume of Cone 1 should be about 23.55mm³.
<h3>Cone 2:</h3>
The height of Cone 2 is 13 in. The Radius of Cone 2 is 5 in.
Using 3.14 as pi:

340.166666667 ≈ 340.17
The volume of Cone 2 should be about 340.17in³.