Please show all work and don't skip any steps. No rounding final answer and must be correct sig figs. Thank you!

Two spherical shells have a common center. A -1.00 x 10" C charge is spread uniformly over the inner shell, which has a radius of 0.050 m. A +6.00 x 10" C charge is spread uniformly over the outer shell, which has a radius of 0.15 m. Find the magnitude and direction of the electric field at a distance (measured from the common center) of (a) 0.20 m, E = i (b) 0.10 m, E = i (c) 0.025 m. E =