Answer:
C, sin(x), -1
Step-by-step explanation:
right on Edge
split up the equation using the sine sum equation
The answer is 4........ if i’m not mistaken
SOLUTION:

<h2>
Explanation:</h2>
Let's use the following System of Linear Equations in Two Variables in order to solve this exercise:

So we can graph these lines using two points.
For eq (1):

So graph a line that passes through these two points. This is the red line shown below.
For eq (2):

So graph a line that passes through these two points. This is the blue line shown below.
<em>The solution of this system of equation is the point of intersection, which is (1,3)</em>
<h2>Learn more:</h2>
Parallel lines: brainly.com/question/12169569
#LearnWithBrainly
The correct answer to your question is going to be option C. if we look at the equation 4x + 7 = 31, we can see that 4x stands for a number that changed depending on how much of something x can be. the 7 in the equation stands for something doesnt change depending upon variables how much or how little x will be. knowing this, if we look at option C we read that each phone case cost $7 while $4 is how much it costs to ship. since this problem is about how many $4 phone cases Taliba can get, C would incorrect because they say that $7 is the post of each phone case.
let me know if you have any further questions
:)