Answer:
880m
Explanation:
First put the quantity with units:
44[tex]\frac{m}{s}[/tex]
Then put the quantity to multiply with units too:
[tex]44\frac{m}{s}*20s[/tex]
Then multiply and take in account that the units are divided too:
[tex]44\frac{m}{s}*20s=880m[/tex]