Someone help pls, :(

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.

Terri makes a quilt using three sizes of fabric squares the side lenght of each fabric square is the square root of the area

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?