I don't understand how to get the right answers

Two blocks connected by a rope of negligible mass are being dragged by a force at a 19 angle above horizontal (see figure below). Suppose F = 115.0 N, m₁ = 14.0 kg, m₂ = 20.0 kg, and the coefficient of kinetic friction between each block and the surface is 0.146. Use g=9.8 m/s².

(b) Determine the acceleration of the system.

0.5209 m/s^2 X

(c) Determine the tension T in the rope.

27.6046 N X