Answer:
2 1.2 and -2 1/2
Step-by-step explanation:
Input is domain and output is co-domain.
An expression is said to be a function if for every input, there is only one output. In table B, for every input, you get different outputs. Therefore, table B is a function.
Answer:

Step-by-step explanation:

Answer:
Step-by-step explanation:
In exponent multiplication, if base are same just add the powers.


Answer:
<h3>
y = 20</h3><h3 />
Step-by-step explanation:
line RPN = 180 = 4y - 10 + 90 + y
180 - 90 + 10= 5y
100 = 5y
y = 100/5
y = 20