Answer:
-1.6
Step-by-step explanation:
4x-2/5
=-8/5
=-1.6
 
        
             
        
        
        
.8 (88%)+.2x=90%
70.4%+.2x=90%
subtract 70.4% from 90% to get 19.6%
make the .2x into 2 and the 19.6 into 196
divide 196 by 2 to come up with the answer of 98%.
you will need a 98% to have a 90% for the final grade
        
                    
             
        
        
        
Answer:
Yes, they are equal.
Step-by-step explanation:
-3.0 + 0.8 = -2.2
<em>Hope</em><em> </em><em>it</em><em> </em><em>helps</em><em>.</em>