Brody made 4 stacks of wooden blocks.The first stack was 7 blocks tall.The second stack was 4 blocks taller thanks the first.The third stack was 6 blocks shorter than the second stack,and the last sta

Brody made 4 stacks of wooden blocks.The first stack was 7 blocks tall.The second stack was 4 blocks taller thanks the first.The third stack was 6 blocks shorter than the second stack,and the last stack was 9 blocks taller than the third stack.How many blocks did Brody use in all?