Use mean ± SD to identify an interval of typical measurements. Fill in the lower bound and upper bound of each typical interval. When asked for a number, just type the number. Do NOT include units. For example, type 26.8, not 26.8cm. The chest diameters of typical males fall between and . The chest diameters of typical females fall between and . Based on your calculations, do typical men tend to have larger chest measurements than typical women? (Type yes or no.) The pelvic diameters of typical males fall between and . The pelvic diameters of typical females fall between and . Based on your calculations, do typical men tend to have larger pelvic measurements than typical women? (Type yes or no.)

First, think of what you know. you know that the number t the end of the equation will need to be subtracted because it is the money he lost from buying the lawn mower. and your first two weeks have negative profit, so that tells you that c and d are wrong. now you can plug any of the weeks into a and b to see which one works. i'll start with plugging week 1 into a.this isn't right because it says your answer for week one should be -90.so now we need to try the same thing with b.this one got you the right answer, (sometimes if you only check with one of the weeks multiple will work so you need to check with more of the weeks, but it worked out fine here)this means that b is the correct answer.let me know if you need more clarification. i hope this : )

The first graph is the answer