I need some help pls somebody don't know these ones

What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²

Which of the following parabolas opens up?

Four equations are shown below.equation 1: y=2*equation 2: y=2x-5equation 3: y=x2 + 6equation 4: tdentify one linear equation and one nonlinear equation from the list.why each equation you identified is linear or nonlinear.nd one nonlinear equation from the list. state a reasonlinear equation