Answer:
3
Step-by-step explanation:
13 divided by 11.3 is 1.150442477876106. So 15 by 1.150442477876106 and you get 13.03846162772485. Just round it to the nearest tenth and you get 13.0.
The answer is 15w^2 + 225w
Key:
^ - Means that it is an exponent, in case you didn't know :)