Which expression does not belong with the other three? Explain your reasoning. −58−34 −34+58 −58+(−34) −34−58 Question 2 This expression equals . All the others equal .

Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

What is 1.5% of 120 or what number is 1.5% of 120