Answer:
I think that would be R
Step-by-step explanation:
A Variable is a symbol for a number we don't know yet. It is usually a letter like x or y. A number on its own is called a Constant.
The equivalent expression of
is 
<h3>How to determine the equivalent fraction?</h3>
The fraction is given as:

Take the LCM

Express as products

Evaluate the product

Hence, the equivalent expression of
is 
Read more about equivalent expression at:
brainly.com/question/24734894
#SPJ1
The perimeter of a shape is the sum of its side lengths.
<em>Joshua miscalculated the third length of the triangle</em>
First, we calculate the third length (x) of the triangle.
Because the triangle is right-angled, we can make use of Pythagoras.
So we have:


Take square roots of both sides


The other shape in the figure is a square.
So, the perimeter (P) is
---- i.e. the sum of the visible lengths
So, we have:

Evaluate like terms:

Hence, Joshua's error is that:
<em>He miscalculated the third length of the triangle</em>
Read more about perimeters at:
brainly.com/question/6465134
The answer is
D) x=6
Explanation
I had this fkr class right now
Hope i help pls gove me brainliest