rporated Business Tax 7a. 65115. 7b. Estimate of 2018 tax from line 6 7b. 65120. COMPUTATION OF INSTALLMENT - floe ) °tech proper box beton and Nike Amdahl hdicated. Faecal year taxpayers see Instructions. 8. If this declaration April 17, 2018, enter 1/4 of line lb Sept. 17, 2018, enter 1/2 of line 7b