Expand -5/6 (9b– 12).

Expanding -5/6 (9b– 12) is done by distributing -5/6 to each term inside the parentheses:

-5/6 (9b– 12) = (-5/6)(9b) + (-5/6)(-12)

Multiplying each term by -5/6 gives:

= -45/6 * b + 60/6

Simplifying the fractions:

= -15/2 * b + 10

Thus, -5/6 (9b– 12) expands to -15/2 * b + 10.