Answer:
The term was obtained by grouping and adding the all x terms in the expression.
Step-by-step explanation:
The example has already provided this step:
(x -4) +(x +1) +(¼x +5)= 
Thus, the question is asking how is
derived from the expression.
The attached picture shows the intermediate working to arrive at the final perimeter expression.
This expression is later equated to 20 since it is given that the perimeter of the traingle is 20 inches.
Answer:
128π or 402.12
Step-by-step explanation:
Vol of a sphere = 4/3πr³
Sub 2 into ^
Multiply by 12 to find vol of all 12 shapes
This is the volume of water needed
Answer:
Step-by-step explanation:
2x +2 = 3x - 52
-2x -2x
2 = x -52
+52 +52
50 = x
Answer:

Step-by-step explanation:

<h2>Greetings!</h2>
Answer:
250%
Step-by-step explanation:
To find the percent increase, divide the end amount by the primary amount:
45 ÷ 18 = 2.5
Now simply multiply this value by 100:
2.5 x 100 = 250
So the percent increase is 250%!
<h2>Hope this helps!</h2>