For this case we have the following expression:

We must find the value of the expression when:

Substituting the values in the expression we have:

Thus, the value of the expression is 2.
Answer:
The value of the expression is 2
Option A
Answer: 21
Step-by-step explanation:

Substitute the value of z into the expression:

Answer:
Hope that answers your question
55% if the percent is out of 100%. in which most weather statisics are out of 100. in which you take 100-45= giving you 55%
Answer: 4/3
Step-by-step explanation:
You would find this answer because if x is 0 then it is just 2 then when you multiply 3 x 4/3 you get 4 then when you add that by two you get 6
Hopes this helps