100×16.60=1,660
Sam cost
1,660+1,660×0.06=1,759.6
Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:


We use binomial expansion for 
This can be rewritten as
![[x(1+\dfrac{h}{x})]^{\frac{1}{2}}](https://tex.z-dn.net/?f=%5Bx%281%2B%5Cdfrac%7Bh%7D%7Bx%7D%29%5D%5E%7B%5Cfrac%7B1%7D%7B2%7D%7D)

From the expansion

Setting
and
,


Multiplying by
,



The limit of this as
is
(since all the other terms involve
and vanish to 0.)
1 bottle cap is 1.2 cm, so two caps would be 2.4 cm ( 1.2 x 2)
The scale is 2.4 cm: 1 foot, so 2 bottle caps would equal 1 foot.
The building is 20 feet tall
20 feet x 2 caps per foot = 40 caps total.