Crucical to my grade
xy = –25. what is the constant of variation for this relationship?

a) 1/4
b)-0.4
c)-2.5
d)-25

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

Given the choice between receiving $1.000.000 in one month or a single penny-doubled everyday for the period of one month; which option would you choice? show your work to support your answer. (assume that 1 month=30 days)

The number of hours per week that the television is turned on is determined for each family in a sample. the mean of the data is 37 hours and the median is 33.2 hours. twenty-four of the families in the sample turned on the television for 22 hours or less for the week. the 13th percentile of the data is 22 hours. approximately how many families are in the sample? round your answer to the nearest integer.