Angle DAC = 180-25 = 155 degrees
Angle ABC = 180 - 146 = 34 degrees
Angle ADC = 180 - 149 = 31 degrees
ABCD is a quadrilateral and angles in quadrilateral add up to 360 degrees
Angle BCD = 360 - (155 + 34 + 31)
= 360 - 220
= 140 degrees
19.18/2.8= 6.85 hours or rounded it would be 7 hours
N would equal 28 since 60-32 is 28
If your looking for Standard Form Rewrite it as...