What is a trick that is spelt the same way equals D equals D equals D equals D equals D equals D?

The answer is.... dots on a dice.

10 dimes in a dollar

7=dd=3 so 7 goes by 3+d = cC=cost and so it equals 10+1902 =1912

P = Pieces/Parts D = Dozen

Diameter, the line that dissects the circle exactly in half.