I am assuming you meant to write b(x) = x-4.

Since this is a linear function, the domain is all real numbers.
Cube surface area = side^2 * 6
cube surface area = 2.3^2 * 6
cube surface area = 31.74 cm^2
The answer is 5/9.
(P.S. I got the step by step solution from a Socratic Question and Answer website)
Answer:
x = -6
Step-by-step explanation:
First write the equation.
4x + -3 = 5x + 3
The isolate x in the equation. Add -4x to both sides.
4x + -3 + -4x = 5x + 3 + -4x
-3 = x + 3
Then add -3 to both sides.
-3 + -3 = x + 3 + -3
-6 = x
Now you have the value of x = -6.
Cheers.
Cosine functions are positive in quadrant 4
Here is a helpful mnemonic All Students Take Calculus (might be helpful in the future)