The scale on a highway construction drawing is 0.5 inches for every 45 miles. if the drawing shows the highway is 4 inches long, how long is the actual highway?

Determine whether the samples are independent or dependent. upper a data set includes the morning and evening temperature for the lasta data set includes the morning and evening temperature for the last 90 days.90 days.

Can someone explain to me how to do

What is the slope of (0,32) and (100,212)