The table shows the temperatures in degrees Fahrenheit and the number of tourists. How do I do this and what's the answer? This one is tricky for me

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 point-slope equation of a line with slope -5 that contains the point (6,3)

Which of the following expressions is equal to 2x^2+8