Answer:
26
Step-by-step explanation:
First substitute x for 9
Then your problem is m(9)=2(9)+8
Now it is m(9)=18+8
Then add 18 and 8 for 26
582-600
1,234-1,200
640-600
770-800
1,104-1,100
1,2,3, and 5
I plugged them all into a calculator