Yes this is a polynomial.
the degree is 4.
Area of a circle is given by

where

is the radius
Radius of a circle is half of the diameter
We have the diameter 30 meters, so the radius is 30÷2=15 meters
Area of the circle = 
Note: The option given doesn't show the

symbol but it seems like the correct answer is option A
16*16= 256 meters squared ( the rectangle)
100. 53 is the area of the semi circle.
356.53 meters squared is the area of the whole figure because you add the area of the rectangle and the semi circle
Let after n week both tanks have same quantity of water .
for first tank
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tank hold 540 gallon of water ,
leaking of water 4 gallon /week
so, in n week water leak from the tank =4× n = 4n
now, after n week quantity of water in the tank = 540 -4n
for second tank
==============
quantity of water in the tank =720 gallon
leaking of water at the rate = 7gallon/week
so, after n week water leak from the tank = 7× n =7n
after n week quantity of water rest in the tank = 720 -7n
now ,
according to question ,
water in first tank = water in second tank
540 -4n = 720 -7n
7n -4n = 720 -540
3n = 180
n = 60
hence , after 60 week both tank have same quantity of water.
Answer:
C
Step-by-step explanation:
earning from car parking: $8 * x
earning from truck parking: $10 * y
The sum is 8x+10y