Ronda ordered 3 t-shirts for $15.67 each and one skirt for $24.55 and a 6% tax. what is the total cost of the order?
a. $71.56
b. $75.85
c. $26.02
d. $83.26

The  total cost of the order is $75.85 .

Option (b) is correct .

Step-by-step explanation:

As given

Ronda ordered 3 T-shirts for $15.67 each and one skirt for $24.55 and a 6% tax.

Total cost of the 3 T-shirts and one skirts =3 × Cost of the 1 T - shirts + Cost of the skirt

                                                                    = 3 × $15.67 + $24.55

                                                                    = $47.01 + $24.55

                                                                    = $ 71.56

6% is written in the decimal form

= 0.06

Sales tax = 0.06 × Total cost of the 3 T-shirts and one skirts .

               = 0.06 × 71.56

               = $ 4.2936

Thus

Total cost of the order =  Total cost of the 3 T-shirts and one skirts + Sales tax .

Put all the values in the above

Total cost of the order = $71.56 + $ 4.2936

                                      = $ 75.85 (Approx)

Therefore the  total cost of the order is $75.85 .

Option (b) is correct .

f(2x−x2)=−3x2+6x−1

step-by-step explanation:

set up the composite function and evaluate.

f(2x−x2)=−3x2+6x−1