Answer:
a) eight and seven ninths minus three and four sixths
Step-by-step explanation:
The required result is 
a)

b)

c)

d)

64+(2x)=35(x-1)
expand
64+2x=35x-35
minus 2x from both sides
64=33x-35
add 35 to both sides
99=33x
divide both sides by 33
3=x
the number is 3
Answer:
<h3>
Length = 12 ft</h3>
Width = 
Step-by-step explanation:
Given,
Area of rectangle = 
Width = X
Length = 2x + 5
Now,






Either




Or,



Negative value can't be taken.
So, width = 
Again,
Finding the value of length,
Length = 



Length = 12 ft
Therefore, the sentence "A triangle is isosceles if and only if it has two congruent (equal) sides" is <span>biconditionaL</span>
Answer:
-1 -5 +9 = 3
Step-by-step explanation: