It would be Y=80
Hope that helped
Answer:

Step-by-step explanation:
using the rule of exponents
=
, then
=
=
= 
Answer:
Step-by-step explanation:
If you meant to type x+1<21, then we simplify this inequality by subtracting 1 from both sides, ending up with x < 20.
I do not recognize what your "4" represents.
Answer:
289
Step-by-step explanation:
Answer: A,E
Explanation: i just sacrificed my answer to find the right answer