Please help with this.

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Need solving this second acceleration problem.

Sketch the vector field vector f( vector r ) = 8vector r in the xy-plane. select all that apply. the length of each vector is 8. the lengths of the vectors decrease as you move away from the origin. all the vectors point away from the origin. all the vectors point in the same direction. all the vectors point towards the origin. the lengths of the vectors increase as you move away from the origin.