Bowling lane but with 1,000 rows, how many pins?

There is a bowling alley where each lane has one more row than the previous lane. 500 lanes how many pins total? (Lane 1 has one row)

City one has one bowling alley. That alley only has one lane. City two has two bowling alleys. The first alley has one lane. The second alley has two.

How many pins would there be in 7000 cities?

If we called each level here a ‘layer’ and layer one is pins, layer two is rows and layer three is lanes and so on. How many pins would there be for ten of the twelfth layer?

How many pins would there be for ten of the thousandth layer?

There are 4000 of the x layer. What is the minimum value of x for the number of pins to exceed 10^80 (atoms in the universe)?

Y = 2C -3

Y of layer C > 1,000,000,000

Y + C must be as low as possible

Y and C are both positive and are whole numbers.

What is C and Y? Is there a real solution?