The following were the scores of 25 pupils in the class: 62,80,52,71,38,44,51,50,41,38,42,45 ,54,34,28,55,60,59,40,40,50,40,28,3 2,40 Use the data to analyze and report pupils’ performances
what is the mean of the numbers above?

Farnesene is a sesquiterpene. how many different isomers arising from double-bond isomerizations are possible? g

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days