<span>We can multiply the numerator and the denominator of 7/11 by 3, 4 and 9: 7/11 = 21/33 = 28/44 = 63/99. Than we can see that: 25/44 < 21/33 or 25/44 < 7/11 ( C is not correct ). Also: 77/99=0.777...and 76/99=0.7676... Therefore: 0.75 < 77/99 , 0.75 < 76/99. And since: 23/33 = 0.6969...: 7/11 < 23/33 < 0.75. Answer: D ) 23/33 </span>
HCF of 12 and 15 by Prime Factorization
1. As visible, 12 and 15 have only one common prime factor i.e. 3. Hence, the HCF of 12 and 15 is 3.
2. To find the HCF of 20 and 25, we will find the prime factorization of the given numbers, i.e. 20 = 2 × 2 × 5; 25 = 5 × 5. ⇒ Since 5 is the only common prime factor of 20 and 25. Hence, HCF (20, 25) = 5.
Equivalent expressions are expressions that have the same value.
The equivalent expression of 
is: 
The expression is given as;
Apply law of indices to change the exponents
Express as products
Rewrite as
Hence, the equivalent expression is:
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brainly.com/question/24242989
0=x3-3x2
x3-3x2=0
x2•(x-3)=0
x=0
