Explanation

1 yard = 3 feet  

So,  

1 foot = 1 ÷ 3 = 0.333... yards

Explanation

1 foot = 0.3048 meters (exact value)

Rounded to 4 decimal places, this is approximately 0.3056 meters. 

Explanation

 There are 3 feet in 1 yard. 

Explanation

22-karat gold, which contains 91.6% pure gold and 8.4% other metals like copper and silver,

It is commonly called "916 gold" or "22K gold" and is typically identified by a hallmark stamp indicating its purity. 

Explanation

Explanation

For example, 22-carat gold will be marked as "22K" or "916," representing 91.6% purity.

The 916 hallmark gold price is often higher due to this guaranteed purity.

Explanation

 18-karat gold contains 75% pure gold and 25% other metals, such as silver and copper. 

Explanation

 12 karat (12K) gold contains 50% gold.

The karat system measures gold purity,

Where 24 karat (24K) is considered 100% pure gold,

So 12 karat gold is 12/24, or half, pure gold. 

Explanation

tan A + tan B = √2 + 1

Explanation

x³ + 1/x³ = (x + 1/x)³ − 3(x + 1/x)  

= 3³ − 3×3

= 27 − 9

= 18