If you live in Portland, you live in Oregon. Cara does not live in Oregon. Therefore, Cara does not live in Portland. a.) Overlapping Sets
b.) Subsets
c.) Disjoint Sets

Please somebody help me

The areas of two similar triangles are 72dm2 and 50dm2. the sum of their perimeters is 226dm. what is the perimeter of each of these triangles?

(-y to the power of 2 - 4y- to the power of 2 -6 y +3)

Twelve different video games showing substance use were observed and the duration times of game play (in seconds) are listed below. the design of the study justifies the assumption that the sample can be treated as a simple random sample. use the data to construct a 99% confidence interval estimate of μ, the mean duration of game play. 4028 4316 4816 4650 4036 5010 4833 4331 4307