Answer:
The product would be -27x.
Step-by-step explanation:
First you use the distributive property to distribute the -9x to the 5 and the -2x. Then you would get -45x+18x. 18x because when you multiply a negative and a negative you get a positive. Then, you add those two and you should get -27x.
-22 belongs to the set of Integers, rational numbers
I think the correct answer is 560ft^2.
