(15 POINTS) Sorry the picture isn’t great, I need to solve for y

Find the equation of the trend line (line of best fit). show your work i'm using the points (34,76) (42,91)

What value of x is in the solution set of 4x – 12 s 16 + 8x?

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?