So I solved A (PROFESSOR APPROVED MY ANSWER) and I am unsure for b,c,and d...
to get A i have to solve for q
first since it was not given.
Q=Er^2/k = 3.12uC...
TO SOLVE for flux i did 4pi*k*Q = 353429.17 Nm2/C
Please please help me with b,c,and d