Answer:
E. he multiplied 9 and 0.7 incorrectly.
Step-by-step explanation:

and also

now, we know that V varies directly to T and inversely to P simultaneously
thus

so
12.06
why? well 6 is the hundredths place and you go over 1 to the 2 which is less than 5 so u dont change it
If their perimeters are equal, we can add up all the side lengths of each triangle, and set the perimeters equal to each other to find the value of x that satisfies the equation:
x - 2 + x + 3x + 1 = 2x - 5 + x + 4 + 6x - 7
Combine like terms:
5x - 1 = 9x - 8
And finally, solve for x:
7 = 4x
x = 
Therefore, x is equal to
.
<em>Hope this helps! :)</em>