Hi. Our professor is letting us redo the questions we missed on our test for half-credit because the averages in his classes were 50, 60, and 70. I am looking for a bit of help on this question please.

a.) Find the acceleration of Fnet = -5.0 N in the x direction - 3.0 N in the y direction, in magnitude angle form.

b.) Find the acceleration of Fnet = 4.3 N in the x direction + 0.5 N in the y direction, in magnitude angle form.

I cannot figure out how to figure that. Any help would be appreciated. Thanks!!