Sum=add. difference=subtract (I'm just answering so you don't waste points)
Answer:

Step-by-step explanation:
The question calls requires one to get the product of the given time. Since first debate lasted for :

-and the second lasted
times more than the first then the second took then the first step will involve converting the mixed fractions into improper fraction which will be:

-Now multiplying
hrs
Answer:
hope it was helpful!! You are welcome to ask any question
Answer:
15 Hours
Step-by-step explanation:
It takes 1.5 hours to build 1 birdhouse, so multiply 1.5×10 and you get 15 hours.
Answer:
the third one
Step-by-step explanation:
add 2y and 16 to both sides. then divide by 2