Answer:
x>4
Step-by-step explanation:
because x is greater than 4
Answer:

Step-by-step explanation:
Solve for x by simplifying both sides of the equation, then isolating the variable.
Answer: 
Step-by-step explanation:
This is what it is as a mixed number

= 
= 
If you want it written in exponential form it would look like this:

Answer:
A = 28.125 * pi cm^2
A = 88.357 cm^2
Step-by-step explanation:
Area of a sector is 1/2 r^2 theta where theta is in radians
convert 45 degrees to radians
theta = 45 * pi/180 = pi/4
A = 1/2 * 15^2 * pi/4
A =1/2 * 225 * pi/4
A = 28.125 * pi cm^2
A = 88.357 cm^2
<span>Simplifying
y = 20x + 500
Reorder the terms:
y = 500 + 20x
Solving
y = 500 + 20x
Solving for variable 'y'.
Move all terms containing y to the left, all other terms to the right.
Simplifying
y = 500 + 20x</span>