8 and 1/2 would be probably the answer
For this case we have a quadratic equation,
, of the form 
Where:

We can solve the equation by factoring, that is, we bias two numbers that multiplied give as a result -60 and added as a result 28.
These numbers are:

Then, the factorization is given by:

The roots are:

Answer:

Ok u have a phone and call 911 and say I don't know to solve can u help me
Answer:
There are two and they both mean the same thing.
Step-by-step explanation:
1. 9 x (times) n
2. 9n
I hope this helps u! :D