Question 158101
You must work for at least 80 hours in this course to complete the requirements. 
h>=80

Some of that will be testing time, and some will be for assignments.
h = 110a + 18t

You have 18 tests that take from 1/2 hour to 2 hours each to complete.
0.5 <= t <=2 OR written in two parts
t >= 0.5
t <=2

You have 110 assignments that take between 1/2 hr and 1 hour to complete. 
0.5 <= a <= 1 Or written in two parts
a >= 0.5
a <=1

To graph, plot the equations as equalities and then 'shade' the area that is above (greater) or below (less than) as appropriate. In each of the 5 single inequalities above, the lines will be "vertical lines".