pleaseee help its timed and this needs to be finished soon and a need a correct answer quick. please helppp me (its 6th grade math ) so it shouldn't be hard. ill mark u brainiest if u get it right

Right ∆abc has coordinates a(-7, 3), b( -7, 10), and c(-1, 3). the triangle is reflected over the x - axis and then reflected again over the y - axis to create ∆a'b'c'. which are the coordinates of vertex a'?