90+30x+30y. This is because the first day, 90 labels were printed, then you will use 30 times x to find how many minutes. This is the same for 30 times y. Youre trying to figure out how many minutes each machine printed for.
        
             
        
        
        
If they are two positive numbers, do it normally. If there is a negative and a positive, change it to addition and switch the SECOND integer sign. Only works with two integer…s in a subtraction question.
        
             
        
        
        
I don’t think you pick an answer you just put all of those formulas and solutions into your calculator and that will give you what you need to move onto the next question/ step
        
             
        
        
        
Its wanting you to find the answer im guessing ? 
like (3+6) x 121 
Add the Numbers 
9x 121 
Multiply the Numbers 
and the answer would be  1089 ? 
I hope Helped you 
- Dante 
 
        
                    
             
        
        
        
Answer:
y=[-4]x+[10]
Step-by-step explanation:
For a line to be perpendicular to another it must have the reverse reciprocal of the opposite line, to find the reverse reciprocal you take your slope, flip the numerator and denominator, and multiply it by -1.
The slope  turns into
 turns into  and is then multiplied by -1 to become
 and is then multiplied by -1 to become  which can be simplified down to:
 which can be simplified down to: 
Now that we know the slope we need the line to pass through a point, so we will use point slope form:

Substitute in our slope and point values:

Now solve for y:

Then you will find that line  runs perpendicular to
 runs perpendicular to  and intersects point (2,2).
 and intersects point (2,2).