Answer:
1287
Step-by-step explanation:
The number of combinations of 13 diamonds taken 5 at a time is ...
13C5 = 13·12·11·10·9/(5·4·3·2·1) = 13·11·9 = 1287
4
One-third of a number x is equal to 22 less than the number.
(1/3)x=x-22
I cant Im sorry