Please help me and if you did thank you.

Solve the equation: x - 9 = -6 + 5 a. 21 b. 7 c. 14 d. 2

Use the equation and type the ordered-pairs. y = 2 ^x

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?