10 liters of gas fill one tank. x liters of gas fill x/10 tanks. 35 liters of gas fills 35/10=7/2 tanks 7/2 can also be written as 3.5 or the mixed number (3 and 1/2)
The true statements are (D) and (E). This is a square with sides equal to 5 units so that means that its perimeter is 4×(5 units) or 20 units and its area is (5 units)×(5 units) or 25 units^2.