Answer:
Graph A
Step-by-step explanation:
For each piece of the function the first number is included (0, 4, 8) and second number excluded (4, 8, 12). Included points are solid and excluded are open dots.
It's correctly reflected in A graph only.
P = 11.2
Step-by-step explanation
The last one
5x<30
x<6
Because when you divide by pos+ number
the symbol cannot change.
B grade
75 + 90 + 88 + 86 = 339
339/4 = 84.75
Grade B = 80-89%