Use the formula I = PRT.....you'll get $2000
        
                    
             
        
        
        
Answer:
no its a not funtion
Step-by-step explanation:
bc 1 n 3 is reapeat
 
        
                    
             
        
        
        
Answer:
vertex  =
(
4  ,  25
)
Step-by-step explanation:
given a parabola in  standard form  y
=  a
x
2
+
b
x
+
c
x
;
a
≠
0
then the x-coordinate of the vertex is 
X vertex=-b/2a
y=-x2+8x+9 with a=-1 b=8 c=9
X vertex= -8/-2=4
substitute the value on the equation 
Y vertex = -(4)squared+8(4)+9=25