Answer:
3
Step-by-step explanation:
3+3+3+3+3+3=18
Answer:
rate of change: 0.3 || the number of marbles is increasing with height of water.
Step-by-step explanation:
<u><em>to find rate of change</em></u><em> </em>: 
: 
: 
: 
Answer: −
4
y
x
+
6
x is the correct answer.
33.3..........................................
He has a total of 40
$40-$5-$15=$20
he has a total of $20 left
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