The box-and whisker plots to the right represent the quiz scores of two classes taught by Miss Lee and Mrs. Akiyama. Answer the following questions about the two classes.

Multiply −2x(6x^4−7x^2+x−5) express the answer in standard form. enter your answer in the box.

Given the following sampling distribution of one mean with a sample size 49, from a normally distributed population,find the population standard deviation, o.79828588912497

Stefano accidentally dropped his sunglasses off the edge of a canyon as he was looking down. the height, h(t), in meters (as it relates to sea level), of the sunglasses after t seconds, is shown in the table. during its descent, the pair of sunglasses passed by a climber in the canyon 6 seconds after stefano dropped them. to the nearest meter, what is difference in elevation between stefano and the climber? 166 meters 176 meters 230 meters 240 meters its b.176 i took the test 166 is wrong and 176 is correct