truck that is 10 ft. X 14 ft. X 12 ft. carries boxes that are 1 ft. X 2 ft. X 3 ft. How many of these boxes can this truck hold?

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'?