Sin(x) = 12/13
x = 67.38 degrees
        
                    
             
        
        
        
Answer:
4 solutions
Step-by-step explanation:
remember that y=mx+b 
So 2/5x would be you m.And -3/7 is your b
 
        
             
        
        
        
Hours = 34
Income per hour = 12.5$
Service calls = 6
Income per call = 4
Therefore, total income
= (time of working * income per hour) + (service calls * income per call) = (34*12.5) + (6*4)
= 425+24
= 449
        
             
        
        
        
Answer:
a = 18
Step-by-step explanation:
2(a-7)=a+4
Distribute 2 into left side: 2a -14 = a + 4
subtract a from both sides  2a-a-14 = a+4-a
Simplify: a  - 14 = 4
Add 14 to both sides: a - 14 + 14 = 4 +14
Simplify:   a = 18
If wanted, plug a into original to double check work:
plug in: 2 (18-7) = 18+4
do parenthesis first: 2 (11) = 18+4
do multiplication : 22 = 18+4
additions: 22 =22
a = 18 is correct.