Because K is the midpoint of JL and JK = 18, KL must also equal 18. So the equation would be 3x - 15 = 36 because you add 18 + 18. You then add 15 to both sides to get 3x = 51. Then you divide by 3 on both sides to get x = 17.
Given:
The shape is square.
To find:
The surface area and volume of a square.
Explanation:
The length of each side of the square is "a" units.
The formula for the surface area of the square is,

The formula for the volume of the square is,

Using these formulas, we can find the surface area and the volume of the square that has side length "a" units.
For example:
Let the side length of 3cm for a square.
So, the dimensions are 3cm by 3cm by 3cm.
That is,
The Length is 3cm.
The breadth is 3cm.
The height is 3cm.
So,

The surface area of the square is,

Therefore, the surface area of the square is 54 square cm.
The volume of the square is,

Therefore, the volume of the square is 27 cubic cm.
4ab / 8c
a=8
b=4
c=12
4 x 8 x 4 / 8 x 12 = 192
Hope this helped!!!
Answer:
4.5 hours
Step-by-step explanation:
First subtract $7 -$1 for the first half hour to see how much money is left over
$7-$1= $6 dollars left
$1.50 for each hour
6/1.50= 4 hours
Don't forget the first half hour. So 4.5 hours