Answer: A
Step-by-step explanation:
You need to do 2y+y+10+50=180. Then you'd combine like terms to make 3y+60=180 then to get rid of the sixty subtract it from 180 to make 3y=120 then divide by three to get y by itself so 120 divided by three is 40 which makes y whisk forty. Hope this helped.
Answer: (a) identity
Step-by-step explanation:
Anything multiplied by 1 will be considered an equation that is identity property.
In the given equation you have to simply multiply 9 with 499....
i.e. 9 * 499 = 4491
In this equation multiplying 9 with 499 is using distributive property because 9 is distributing with 499 to form 4491.
