To solve this problem, we will first convert all the mixed numbers into improper fractions.

7 1/6 = (6*7 + 1)/6 = 43/6

8 3/8 = -(8*8 + 3)/8 = -67/8

2 2/29 = -(29*2 + 2)/29 = -60/29

Now, we can multiply the improper fractions together:

(43/6) • (-67/8) • (-60/29)

To multiply these fractions, we multiply the numerators together and the denominators together:

(43 -67 -60) / (6 8 29)

= (43 67 60) / (6 8 29)

= 166620 / 1392

= 119.64

Therefore, the result of the expression is 119.64.