Answer will be 2 i hope this help
Answer: -18 is NOT included in the Natural Numbers, Whole Numbers, or Irrationals. <em>Based on the choices you provided, the answer is IRRATIONALS.</em>
<u>Step-by-step explanation:</u>
Here are the subsets of the Real Numbers (in order) -
Natural Numbers: 1, 2, 3, .... <em>(does not include -18)</em>
Whole Numbers: 0, 1, 2, 3, ... <em>(does not include -18)</em>
Integers: ... -3, -2, -1, 0, 1, 2, 3, ... (INCLUDES -18)
Rationals: ... Integers and terminating and repeating decimals (INCLUDES -18)
Irrationals: ... non-terminating decimals only (decimals that are not rationals) <em>(does not include -18)</em>
Its called a octagon, hope that helps
P-1=5p+3p-8
p-1=8p-8
-1=7p-8
7=7p
p=1
hope this helps :)