Answer:
See the graph of the given inequality in the attachment as shown below:
Step-by-step explanation:
Given the inequality: 
To graph this inequality on the number line.
Remember:
- If the symbol is
then you fill in the dot
- If the symbol is
then you do not fill in the dot.
Since, in the given inequality the symbol is '>'
Now, sketch a number line and draw an open circle around the number 2.8.
You can see the number line as shown below in the attachment.
..... 40.5 ...............
80 since he starts off with 38 stamps then gains 6 each month for 7 months (6x7=42) so 42+38=80