Answer:
1 foot and 5 inches.
Step-by-step explanation:
He jumped 6 ft. 9 inch. 6.9+1.5 = 8.4
 
        
                    
             
        
        
        
Answer:
The average of the grade is 7.
Step-by-step explanation:
Add all of the grades up then divide by the number of grades there are
8+8+5=21
21÷3=7
Have a blessed day! I hope my answer was helpful!!
 
        
                    
             
        
        
        
Answer:
45º
Step-by-step explanation:
On unit circle 45º = √2/2,√2/2 so its 45º trust me
 
        
             
        
        
        
Answer:
  x = 1
Step-by-step explanation:
 
        
             
        
        
        
let 2x+5y=12......... equation I
also,4x+3y=-4........ equation ii
now, multiply equation i by 2
we get,2(2x+5y=12)
 or,4x+10y=24
now subtract i from ii
4x+10y=24
-4x+3y=-4
so,the answer be 7y=28
 or,y=4
now putting the value of y in equation I we get,
4x+10y=24
or,4x+10.4=24
or, 4x=24-40
or, 4x=16
or,x=4
therefore, the value of x and y are 4and 4