What percentage of the the shape is blue?

Add. express your answer in simplest form. 12 9/10+2 2/3 = i need u guys to me find the answer to this question

Provide all steps given to find the answer. simplify: 5(2x+9)²

In a quadratic function of the form ax^2+bx+c, which of the following is not true? a. the y-intercept is c. b. if a is positive, the parabola opens up. c. the vertex has an x-coordinate of -b/2a. d. the axis of symmetry is the line y=-b/2a.