Make them common denominators
        
             
        
        
        
64. 87.5% in fractions is 7/8. We divide 56 by 7/8, and get to 64.
56 ÷ 7/8= 56 x 8/7= 448/7, which is reduced into 64.
        
                    
             
        
        
        
This one is the Law of Sines again. 
The Law of Sines relies on the standard labeling of triangle ABC with vertices A, B, and C and respective opposite sides of a, b and c. Then

Here we have A=150 degrees (opposite side a), b= 10 cm and B = 12 degrees. We seek a.
So we need the first equation of the Law of Sines:



 
        
             
        
        
        
 
B. Tin can type at least 60 words per minute 
 
Because on too it shows t > 60 but with the underline with it. The underline means equal so therefore its B.