What is the numerical coefficient of the variable $y$y?
$-18y$−18y
What is the numerical coefficient of the variable $k$k?
$-k$−k
What is the numerical coefficient of the variable $t$t?
$\frac{t}{3}$t3
What is the numerical coefficient of the variable $m$m?
$\frac{6m}{7}$6m7