Number of layers in the crate = 7
Number of rows in 1 layer = 5
Number of peaches in 1 row = 9
So number of peaches in 5 rows = [tex]9\times5=45[/tex]
So each layer has 45 peaches.
7 layers will have = [tex]45\times7=315[/tex]
Hence the number of peaches in the crate are = 315