The Dolphin Daily charges by word to run an ad in their paper. The newspaper charges $5 for the first 20 words and $0.25 for each additional word. Evenson wants to run a 31 word ad. How much will this cost him?

31 word ad will cost $7.75 to Evenson.

Step-by-step explanation:

The charge for first 20 words = $5

The next each word costs = $0.25 each word

Total number of words need to be published by Evenson = 31

Now, 31 = 20 + 11

Now, cost of first 20 words = $5

and Cost of additional 11 words = 11 x (Price of each additional word)

= 11 x ($0.25) = $2.75

or the additional 11 words costs = $2.75

Now, Total cost = Fixed price of 20 words + additional cost of 11 words

= $5 + $2.75

= $7.75

or, Total cost of 31 word ad = $7.75

Hence, a 31 word ad will cost $7.75 to Evenson.