You received a bill for $72.56. you prepaid on a budget plan for $120.00/ month. how much was your original bill?

The original bill was $192.56

Step-by-step explanation:

You received a bill for = $72.56

You prepaid on a budget plan for = $120.00 per month

You have already paid $120.00 for the month, but you received a bill of $72.56.

After the payment of $120 you still have to pay $72.56, this means you have to add $72.56 to $120.

Let the original bill be x

x = 120.00 + 72.56

x = 192.56

The original bill was $192.56

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.

about 0.75 hours

step-by-step explanation: