To expand the expression, we can use the distributive property of multiplication over addition.
9(k + 13) + 10(12k - 1)
= 9 * k + 9 * 13 + 10 * 12k + 10 * -1
Simplifying further:
= 9k + 117 + 120k - 10
= (9k + 120k) + (117 - 10)
= 129k + 107.
Therefore, 9(k + 13) + 10(12k - 1) simplifies to 129k + 107.