I don’t understand what i have to do, please help. Thanks!

On a architect's drawing of a house, 1 inche representa 1.5

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

Determine the domain and range of the given function. the domain is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}. the range is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}.