Answer:
P=462+66-9
=528-9
=519
Q=762-26-5
=762-31
: =731
It depends on the size of the fish tank, so this question cannot be properly answered.
Lets put Monday as 'm'
Monday: m
Tuesday: 2m
Wednesday 2m-6
The Three Days: 5m-6
Final Answer: 5m-6=19
y= -2/5x + 5
Step-by-step explanation: