Answer:
The standard form is 
Step-by-step explanation:
The standard form of a linear equation can be written as

The given equation is

This equation is in the slope-intercept form.
To rewrite this in standard form, we must multiply through by the least common multiple which is 4.

We now add
to both sides of the equation to obtain,

This simplifies to

Hence the standard form is

The correct answer is A
Answer:
The line has a slope of Zero.
Step-by-step explanation:
To solve for X: First you multiply x and 6 then subtract 21 on both sides and then divide by 6
531 = ( X × 6) + 21
531 = 6X + 21
510 = 6X
85 = X
Hope this helps :)
if you mean the triangle one, it's 25cm