Question 1012785
.
y=total cost; x=number of words
.
For newspaper:
y=$8+$0.20x
.
For online:
y=$10+$0.15x
.
The same:
$8+0.20x=$10+$0.15x
$0.05x=$2
x=40
.
ANSWER: The costs will be the same for 40 words.