Answer:
yes
Step-by-step explanation:
even though x<10 you can still use 9.99 and so forth and 11.879 + 9.99 = 21.869 which is more than 21.709
Lets solve
[tex]\\ \sf\longmapsto 11.879+x<21.709[/tex]
[tex]\\ \sf\longmapsto x<21.709-11.879[/tex]
[tex]\\ \sf\longmapsto x<9.83[/tex]
Hence
Answer is No
