Which values from the given replacement set make up the solution set of the inequality?   m+7< 18 ; {8,9,10,11}   {8,9} {10,11} {8,9,10} {9,10,11}

8,9,10
how i found this out was if u replace m with 8 it will be 8+7 which is 15 and less then 18
for 9 its 9+7 which is 16 which is less then 18
and for 10 its 10+7 which is 17 which is less then 18
and for 11 its 11+7 is 18 which is equal to 18 so it would not apply to this equation
hope this helps