The answer is C. Use the quadratic formula to solve it and you should be just fine!
5c plus 9c is 14c bc 5 plus 9 is 14 and the exponent is c so 14c
3/4 = 0.75 in decimal inch
Karla wants to leave 0.75 inch in her signature.
4 -0.75 = 3.25 inch needed
0.25 = 1/4
3 and 1/4 inches is needed.