Someone help me with this please. I need help with this test sh*ttt

Find the number of liters in 12.8 gal of gasoline. round to the nearest hundredths

What is the range? can’t seem to find it out

Amira is painting a rectangular banner 2 1/4 yards wide. the banner will have a blue background. amira has enough paint to cover 1 1/2 square yards of the wall. the school colors are blue and yellow, so amira wants to add yellow rectangles on the left and right sides of the blue rectangle. the yellow rectangles will each be 3/4 yards wide and the same height as the blue rectangle. what will be the total area of the two yellow rectangles?