Calculate Karl Pearson’s coefficient of correlation from the following data :

Dylan and dusty plan to take weekly surfing lessons together. if the 2-hour lessons are $20 per person and they plan to spend $100 each on new surfboards, what is the maximum number of lessons the two can take if the total amount spent for lessons and surfboards is at most $480?

Me asap! what is the slope of this line? enter your answer in the box.

Can someone explain to me how to do