The sales tax is 5 percent what is the tax on an item that cost $24

$25.20

Step-by-step explanation:

5% of 24 = 1.20

REASON: .05=5% (5÷100=.05because % means out of 100 or a ÷ sign)

24+1.20= 25.20

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.