Help ASAP , 15 points and a brainy.

How many roots does the graphed polynomial function have? 1-02

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?

Solve |x| + 7 < 4. you so much to who ever answers this!