Lin’s father is paying for a $20 meal. He has a 15% off coupon for the meal. After the discount, a 7% sales tax is applied. He does NOT add tip

$18.19

step by step explanation:

first you must find the amount of money that lins father gets off on the coupon by using the equation 20•0.15=3 meaning that lin’s father gets 3 dollars off

next you find the pre-tax total which in this case would be by using the equation 20-3=17 so the pre-tax total is 17 dollars

then you find the percentage of the tax that you have to add on to the pre-tax total which would be using the equation 17•0.07 and that equals 1.19 dollars in tax

finally, you add the pre-tax total with the sales tax by adding the two (17+1.19) to get a total of 18.19 dollars or $18.18

In the given histogram, the shape of the histogram shows that the shape of the distribution exhibits symmetry (i.e. the shorter bars are to the left and to the right while the longer bars are in the middle). Adding the sales of cars priced under $5,000 and cars priced $45,000 to $50,000 with projected sales of 200 cars for each category will result in adding bars of the same size as the shortest bar to both ends of the histogram. This will not affect the initial shape of the distribution in the histogram as the distribution will still exhibit symmetry. Therefore, the correct answer to the question is "the distribution will exhibit symmetry" (option a).