<h2>
Answer:</h2>
<em>The number is </em><u><em>irrational</em></u><em>.</em>
<h2>
Step-by-step explanation:</h2>
<h3>1. Convert to decimal.</h3>

<h3>2. Conclude.</h3>
<em>Since this number shows to have infinite decimal figures, it cannot be represented as the ratio of 2 integers. Hence, the number is </em><u><em>irrational</em></u><em>.</em>
<u><em>-------------------------------------------------------------------------------------------------------</em></u>
<em>Note.</em><em> In case the number expressed in the question was </em>
, the answer would still be <u><em>irrational</em></u><em>, for the same reasons explained above</em>.
<u><em>-------------------------------------------------------------------------------------------------------</em></u>
<em>Learn more about the classification of numbers here:</em>
<em>brainly.com/question/28292851</em>
<em>brainly.com/question/28292525</em>
<em>brainly.com/question/28281557</em>
<em>brainly.com/question/28262827</em>
Answer:
A. P(EC) = 0.4
B. P(E∪E) = 0.75
C. P(EC ∩ FC) = 0.25
Step-by-step explanation:
Let us calculate -:
we are given with - P(E) = 60 and P(F) =.15,
Thus , (a) 


(b) P(E∪F) = P(E) + P(F)
= 0.60 + 0.15
= 0.75
(c)
∩
∪ 
= 
Hence , the answers are -A. P(EC) = 0.4 , B. P(E∪E) = 0.75 , C. P(EC ∩ FC) = 0.25.