Answer:
<em>(B). 319 </em>
Step-by-step explanation:
= 
=
x = 
≈ <em>319</em>
X (a + 2) = 7
First let's multiply out the brackets on the left side of the equation.
x (a + 2) --> Multiply everything inside the brackets by x.
xa + 2x = 7
Now, both elements of the left-hand side of the equation contain x, so we can divide both sides of the equation by x.
xa + 2x = 7
a + 2 = 7/x
To find a now, just subtract 2 from both sides.
a = 7/x - 2
Write a well-organized paragraph that explains 3 ways fractals are used and give examples to support your choices. This is an opportunity to demonstrate the use of the reasoning skills developed in chapter 2.
A rational number is a number that can be express as the ratio of two integers
F/45 - 2/9 = 2/9....add 2/9 to both sides
f/45 = 2/9 + 2/9
f/45 = 4/9 ...multiply both sides by 45
f = 4/9 * 45
f = 180/9
f = 20 <===
