A scale drawing of a mural uses the scale 2 centimeters (cm): 10 meters (m). Another scale drawing of the same mural uses the scale 2 cm 4 m. In the first scale drawing, the mural is 7 cm long. What is the length
of the mural in the second scale drawing?

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In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.