in order of increasing ring width (least to greatest) : 1920, 1900, 1910, 1940, 1930
which year was the hottest : 1930 how do u know ....because the problem states that a greater width corresponds to a higher average temperature. So the one with the greatest width will have the hottest temperature
which year was coldest : 1920 how do u know....greater width, higher temperature. So the one with the smallest width will have the lowest temperature ======================== third and fourth level below ground level....-3 and -4 ground level ...0 first and fourth level above ground.....1 and 4 the reasoning : if ground level is 0, then anything above ground level will have positive numbers and any level below ground level will have negative numbers
graph : solid circle on -4, solid circle on 4, shading in between...I guess, unless they just want you to plot ur points
the order in which they will be searched : -4,-3,0,1,4
if she takes the stairs.... -4 to -3 is 1 flight of stairs -3 to 0 is 3 flights of stairs 0 to 1 = 1 flight of stairs 1 to 4 is 3 flights of stairs for a total of : 8 flights of stairs