Answer:
405 cubic meters (I think...)
Step-by-step explanation:
9 x 9 = 81
81 x 5 = 405
D. 405
First, you find the area of the swimming pool without the water. That is 9 x 9 = 81. Then you multiply the area (without water) by 5 to find the area with the water.
15 x 1 + 5 x 3 = 30
If you turn the x into a one then it multiplies 15 by one and then it remains at 15, then you multiply 5 and 3 so that's 15 and then 15 + 15 is 30.
The correct answer would be: 4.6 x 10^5
