Answer:
x= 2
Step-by-step explanation:
Given that,
AB = 7.5x
BC = 6x+3
AC = 10x-5
ΔABC is an equilateral triangle.For an equilateral triangle, all sides are equal. ATQ,
AC = BC = AB
10x-5 = 6x+3
Taking like terms together
10x-6x = 5+3
4x = 8
x = 2
Hence, the value of x is equal to 2.
<h3>
<u>Required</u><u> Answer</u><u>:</u><u>-</u></h3>
Here the height and length are the sides of the rectangular wall and we have to find the area.
Area of rectangle is given by:

where l is the length and b is the breadth/width according to the question. Plugging the given values:


<h3>
<u>Hence:</u><u>-</u></h3>
The area of the wall is <u>1</u><u>0</u><u>5</u><u>6</u><u>0</u><u> </u><u>inch²</u>
These are the answers to problems 29 and 30:
29. C
30. C
Answer:

Step-by-step explanation:
We want to find the fraction that is equivalent to the fraction below:
<h2>

</h2><h2 />
Let us put the fraction above in a simpler form:
We can factorise the numerator with 3c and the denominator with -2.

Therefore, we see that
is equivalent to 
I think the answer is D but i could be wrong