The area of square ABCD is 144 square units. The area of square EFGH is 64 square units. HE AB and GE BC. The blue area is three times the red area. Find the area
of AHBG.

The weekly amount spent by a company for travel has an approximately normal distribution with mean = $550 and standard deviation = $40. a) what is the probability that the actual weekly expense will exceed $570 for more than 20 weeks during the next year? (note: one year = 52 weeks) b) what is the probability that actual weekly expenses exceed $580 for 10 or more, but 16 or fewer weeks during the next year?