(-w^3 + 8w^2 - 3w) - (4w^2 + 5w - 7) PLS HELP in standard polynomial form pl

Rose drew a regression line for this paired data set. her line passed through (1, 2) and (3, 5) . what is the equation of rose's regression line?

Which of the following is the correct ratio for converting kilograms to grams

Aplane flies around trip to philadelphia it flies to philadelphia at 220 miles per hour and back home with a tailwind at 280 miles per hour if the total trip takes 6.5 hours how many miles does the plane fly round trip