Answer:
4 cakes
Step-by-step explanation:
-The cakes made on the two days can be expressed as:
[tex]Monday=n\\\\Tuesday=3n[/tex]
-The baker has 4 cakes remaining after selling 8 on Tuesday:
[tex]3n-8=4\\\\3n=8+4\\\\3n=12\\\\n=4[/tex]
Hence, the number of cakes made on monday is 4 cakes.