Please help me with this problem

$6.11 per bag

Step-by-step explanation: The total of both the apples and ice cream is 55.68. Since we’re just trying to find the total price of apples, we’ll subtract the total price of ice cream. 55.68-6.80=48.88. Now we’ll divide $48.88 by 8, since there are 8 bags. That leaves us with $6.11

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.