Answer:
21
Step-by-step explanation:
8 * 2 = 16
5 * 2 = 10
68 - 16 = 52 - 10 = 42.
The perimeter of the square is 42.
42 / 4 = 10.5. 10.5 is the length of a side.
10.5 * 2 = 21.
PART A
move 2/3 to the right side so we could find the value of A
(2/3)A = -24
A = -24 ÷ 2/3
A = -24 × 3/2
A = -72/2
A = -36
Point A is -36
PART B
move -0.2 to the other side so we could find the value of B
-(B)/0.2 = 20
-B = 20 × 0.2
-B = 4
B = -4
Point B is -4
PART C
Find the distance between -36 and -4
d = |-36 - (-4)|
d = |-36 + 4|
d = |-32|
d = 32
The distance of the two points is 32
X - ( 1 / 2 )x - ( 1 / 3)x = 6x / 6 - 3x / 6 - 2x / 6 = ( 1 / 6 )x, where x is full tank of gas
The answer is 1 / 6 of the gas have left ;

400 grams of flour cost $2.4.