Need help ASAP. Last two problems on my study guide, can't seem to solve them?

Find the value of x for which abcd must be a parallelogram -9-6x x-30

Find the solutions for a triangle with a =16, c =12, and b = 63º

F(x)=x^3+4 question 6 options: the parent function is shifted up 4 units the parent function is shifted down 4 units the parent function is shifted left 4 units the parent function is shifted right 4 units