What multiplies to 280 but also adds or subtracts to -34

Ngrid mixes 3.6 pounds of almonds with some raisins to make a trail mix. she divides the trail mix into 12 equal portions. each portion weighs 0.7 pound. how many pounds of raisins did she use to make the trail mix? express the answer to the nearest tenth.

Last one and the bottom answer choice is y=(x-4)^2+1 you guys!

Which of the following parabolas opens down?