Given ABC DEF solve for x

Which of the following is true for the relation f(x)=2x^2+1

What is the solution to the division problem below x3+x2-11x+4/x+4

Eiko is wearing a magic ring that increases the power of her healing spell by 30%30\%30%30, percent. without the ring, her healing spell restores health points. which of the following expressions could represent how many health points the spell restores when eiko is wearing the magic ring?