I believe b is about 16.3, hope this helps
(x-1)(x-1) + (y+2)(y+2) = 3
x2 -1x -1x + 1 + y2 +2y +2y +4=3
x2 +y2 -2x +4y + 2=0
A is the answer
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction
PEMDAS = Please Excuse My Dear Aunt Sally
(x + y = 29)
(y = 29 - x)
(5x + 2(29 - x) = 100)
(5x + 58 - 2x = 100)
(3x = 42)
(x = 14)
(y = 15)
(14 5-point questions and 15 2-point questions)
the answer would be A.) C+15