Every day you drive to work. There is only one traffic light between your home and
your job, and based upon data you have collected this light is green 60 percent of the time
between 6 and 7 a. m.. You typically arrive at this traffic light at 6:45 a. m. What is the
probability that you never have to stop at this light for the next 5 days you go to work? You
may assume that each day is an independent event.

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

Gregory draws a scale drawing of his room. the scale that he uses is 1 cm : 4 ft. on his drawing, the room is 3 centimeters long. which equation can be used to find the actual length of gregory's room?

If m∠abc = 70°, what is m∠abd? justify your reasoning.  using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°.  using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°.  using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality.  using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.