Answer:

Step-by-step explanation:
Cost of one dress = 
Cost of one pair of shoes = 
Cost of one dress and a pair of shoes is 
They get half off the price because they buy both

The shipping and handling charge is
.
So, the total amount Ruth has to pay is
.
Answer:
The first one
Step-by-step explanation:
the X values are all diffrent
17 out of 20 is 85 percent.