The endurance of both track athletes and gymnasts is recorded in terms of maximum volume of oxygen and is measured in milliliters per kilogram of body weight per minute.

track athletes gymnasts
89.2 72.1
45.3 78.5
89.1 66.2
57.3 47.3
61.5 63.1
80.1 89.3
47.2 65.3

what is the difference of means, rounded to the nearest hundredth, for the two groups?

a. dx = 1.73
b. dx = 1.69
c. dx = 67.1
d. dx = 68.7

Marco is studying a type of mold that grows at a fast rate. he created the function f(x) = 345(1.30)x to model the number of mold spores per week. what does the 1.30 represent? how many mold spores are there after 4 weeks? round your answer to the nearest whole number. 1.30 represents the number of mold spores marco had at the beginning of the study; 985 mold spores 1.30 represents the number of mold spores grown in a given week; 448 mold spores 1.30 represents the 30% rate of weekly growth; 345 mold spores 1.30 represents the 30% rate of weekly growth; 985 mold spores

An apartment has a replacement cost of $950,000 and contents valued at $1,450,000. it has a classification of a and a territory rating of 3. find the annual premium a) $10,185 b) $9,230 c) $3,155 d) $13,830

This is a map of the mars exploration rover opportunity predicted landing site on mars. the scale is 1cm : 9.4km. what are the approximate measures of the actual length and width of the ellipse? i mostly need to know how to set it up : )