Randy ordered 3 t-shirts for $25.67 each and one skirt for $23.55 and an 8% tax. what is the total cost of the order?

Find out the what is the total cost of the order .

To prove

As given

Randy ordered 3 T-shirts for $25.67 each and one skirt for $23.55 and an 8% tax.

Cost of the 3 T-shirts = 3 × 25.67

                                   = $ 77.01

Cost of one skirt = $23.55

Total cost of the  3 T-shirts  and one skirt  =  $ 77.01 + $23.55

                                                                      = $ 100.56

8% is written in the decimal form

= 0.08

Tax price = 0.08 × 100.56

                =$ 8.0448

Total cost of the order = Total cost of the  3 T-shirts  and one skirt + Tax price

                                     =  $ 100.56 + $8.0448

                                     = $ 108.0448

                                    = $108.05 (Approx)

Therefore the total cost of the order is $108.05 (Approx) .

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step-by-step explanation:

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.