Y= 4(100+10) Because the slope is the total cost it is to make the shirts times what you made from the cost ($4)
        
             
        
        
        
11-a is false, because 10/28 can only be reduced to 5/14. 11-b is false, because 6/12 can be reduced to 1/2 ( 1/2 and 2/4 are equal though, but are not both in simplest form ) Finally, 11-c is true, 2/14 can be reduced to 1/7.
        
                    
             
        
        
        
Answer:
B
Step-by-step explanation:
 
        
             
        
        
        
1.219 meters. Please mark this as brainliest. Hope I helped!
        
             
        
        
        
Answer 
Find out the altitude of the equilateral triangle .
To proof
By using the trignometric identity.

As shown in the diagram 
and putting the values of the angles , base and perpendicular


solving


As 

put in the above
a = 4 × 3
a = 12 units
The  length of the altitude of the equilateral triangle is 12 units .
Option (F) is correct .
Hence proved