When an actor in a pain reliever commercial puts on a doctor's white coat, the advertisers are hoping that wearing this coat will give the actor the authority to talk persuasively about medicines. This is an example of an appeal to... *

Appeal to Credibility.

Explanation:

Ethos or an appeal to credibilty is a persuasive approach that appeals to the credibility or reliablity of the speaker. In this approach of persuasion, the audience sees how much a person or the speaker can be trusted. Is the speaker of good reputation? Is he trustworthy? etc.

The given scenario exemplifies an appeal to credibility of the speaker. As the audience is persuaded about the medicines seeeing the doctor's white coat. The viewers of these advertisements will see the doctor's white coat and will be persuaded that the endorsement is credible as a doctor is recommending the product or the medicine.

So, the correct answer is an appeal to credibility.

its   c   : ) 0_  

in the problem you wrote said that the taxi charges $0.070 per mile(which would be 7 cents per mile), but then in your suggested equation you have it as $0.70 per mile (which is 70 cents per mile).

the latter seems more realistic, so i will assume that the taxi costs $5.00 and charges $0.70 per mile with tolls costing an additional $3.50. and it asks you to find how far you can travel on $36.50.

let x the number of miles traveled. since the taxi charges $0.70 per mile, multiplying this by the miles traveled (x) will yield the cost of the taxi ride as far as how far it took you. then adding this amount to the cost of the taxi ($5.00) and the additional cost for the tolls ($3.50) will give you the total cost of the taxi ride ($36.50)

that is,

            (0.70)x + 5.00 + 3.50 = 36.50

adding the like terms on the left-hand side of this equation, we arrive at the following:

            (0.70)x + 8.50 = 36.50

subtracting 8.50 from both sides of the equation, we get:

            (0.70)x = 28.00

to solve for x, divide both sides of the equation above by the coefficient of x (that being, 0.70):

            x = 40

thus, you can travel up to 40 miles on $36.50