How many rectangles will fit in the white square?

What is (28 + 7 + 6 + 3) x 1/2 show your work

To describe a sequence of transformations that maps triangle abc onto triangle a"b"c", a student starts with a reflection over the x-axis. how should the student complete the sequence of transformations to map triangle abc onto triangle a"b"c"? plz

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?