Expand −5/6(9b−12) .(1

To expand the expression −5/6(9b−12), we distribute the -5/6 to both terms inside the parentheses.

-5/6(9b) - 5/6(-12)

Simplifying each term, we have:

-45b/6 + 60/6

-45b/6 simplifies to -15b/2, and 60/6 simplifies to 10.

Therefore, the expanded expression is:

-15b/2 + 10