Can someone please solve 3x^2+4x-7<13

Need this asap if anyone can i would be very grateful. if you could show workings that would really

How is the equation of this circle written in standard form? x2 + y2 - 6x + 14y = 142 a) (x - 3)2 + (y + 7)2 = 200 b) (x+ 3)2 + (y - 7)2 = 200 (x - 6)2 + (y + 14)2 = 142 d) (x+6)2 + (y- 14)2 = 142

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?