Answer: 
Step-by-step explanation:
The circular oil slick is expanding at a rate of 
Let A be the area of the circular oil slick,
So, the changes in A with respect to time (t),



Also, the change in diameter with respect to time(t),



For r = 1.5 m,
Answer: 64 inches long
Step-by-step explanation: 16*4=64
Step-by-step explanation:
the answer is c i took the test btw
Let, the numbers = x, (x+2), (x+4)
x+x+2+x+4 = 63
3x+6=63
3x=57
x = 19
so, smallest number would be 19
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