1.8 divided 2 = ___ please do this ASAP I’m being timed!

Determine whether the graphs of y=8x+5 and -y=8x-5 are parallel, perpendicular, coincident, or none of these. a. coincident b. parallel c. perpendicular d. none of these

Question 101 points)which equation in slope-intercept form represents the line that passes through (5, 1) and(-4,7)

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?