the graph below shows the relationship between the number of absence of students at a local community college and this scores the students receive on a test

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?

What is the equation of this graphed line? enter your answer in slope-intercept form in the box.

Standard deviation of 19,29,21,22,23