It is simpler because you do 10+6 and 30+4
16 x 34 = 544
It depends on what the cost of water per thousand gallons is in your area and whether you have sewers. Usually the water bill is doubled when you have sewers. In my rural area, we don't have sewers, just city water at $3.95 per thousand. It cost us under $100 to fill a 16x34 inground pool.
The expression (16 \times 34) can be decomposed into (6 \times 34 + 10 \times 34) because both (6) and (10) add up to (16). This utilizes the distributive property of multiplication over addition, allowing us to factor out (34) from both products. Thus, (16 \times 34) equals the combined results of (6 \times 34) and (10 \times 34). Essentially, it shows that multiplying a sum by a number is the same as multiplying each addend by that number and then adding the results.