The water level in the aquarium's shark tank is always greater than 25 feet. if the water level decreases by 6 feet during cleaning, what was the water level before the cleaners took out any water?

Greater than 31 feet.

Step-by-step explanation:

Let x be the water level before the cleaners took out any water.

Now, the water level decreased by  6 feet during cleaning.

Hence, the water level after cleaning is x -6

Now, it has been given that water level in the aquarium's shark tank is always greater than 25 feet

Thus, the inequality for the situation is

Add 6 to both sides

Hence, the water level before the cleaners took out any water was greater than 31 feet.

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

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