10 watermelon coat $15.what is the cost of one watermelon?

$1.50

Step-by-step explanation:

To get the answer, simply divide the cost of 10 watermelon by the total number of watermelon, to get the cost of one watermelon.

So:

$15/10=1.50

one watermelon costs $1.50

$650 per month plus utilities

step-by-step explanation:

just based on the info you gave, it would seem more cost effective to rent at $650 per month plus utilities.   if utilities are, in fact, $150 per month, your monthly living costs would be $800 as opposed to the other option of $825.