Lumen OHM

Simplify the following:

$\displaystyle \frac{{9}}{{4}}\cdot{0}$

$\displaystyle {0}\cdot{7.6}$

$\displaystyle {20}\cdot{0}$

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Enter your answer as an integer or decimal number. Examples: 3, -4, 5.5172
Enter DNE for Does Not Exist, oo for Infinity

Enter your answer as an integer or decimal number. Examples: 3, -4, 5.5172
Enter DNE for Does Not Exist, oo for Infinity

Enter your answer as an integer or decimal number. Examples: 3, -4, 5.5172
Enter DNE for Does Not Exist, oo for Infinity