The floor of a rectangular deck has a length that is 6 feet more than it’s width, x. hakeem is building the deck and decided to increase both dimensions by 3 feet. what is the new area, d, of the floor of the deck? a. x^2 + 12x + 27 b. x^2 + 9x + 18 c. x^2 + 9x d. x^2 + 6x

Astudent proposes this hypothesis in class: "if i make the angle of a ramp steeper, then a ball rolling down the ramp will be going faster when it hits the ground.” which part of a hypothesis should the student add to this that could also be tested in other experiments? an explanation based on prior scientific knowledge or observations an explanation of how the hypothesis will inspire new questions an independent variable that the student controls during the experiment an independent variable that is affected by the other experimental variable