Yesterday’s high temperature was -8 ℉. Today’s high temperature was 3 °F. Find the change in temperature from yesterday to today. Pls include an equation thank you!

Kylie explained that (-4x+9)^2 will result in a difference of squares because (-4x+9)^2 (-4x+9)^2 =(-4x)^2+(9)^2=16x^2+81

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

Which expression will have the same sum as 3_8 + 1/4?