The first box is 9 and the one on the bottom is 36 and then 72
The answer is:
A) If a = b, then a + c = b + c.
and C) If w + 2 = 7, then w + 2-2 = 7- 2.
Solution:
Here:
On 12 gallons of gas 144 miles is travelled.
So, for 1 mile :


is required.
Now,
for 240 miles:


is required.
But, according to question, the tank only contains 6 gallons of gas. So, see needs more (20 - 6) gallons of gas [i.e. 14 gallons of gas].
Answer:
≈
Step-by-step explanation:
Find the distance between the three pairs first using the distance formula:

Take the first two points,
and insert the values:

Simplify parentheses (two negatives makes a positive):

The distance between the first two points is 5. Use the nest two points,
and insert values:

Simplify parentheses:

The distance between the nest two point is about 4.5. Use the remaining two points,
and insert values:

Simplify parentheses (two negatives makes a positive):

The distance between the last points is 5. Add the distances together to find the perimeter of the triangle:

The perimeter is about 14.5.