Describe who is responsible for the cost and efficiency variances for direct materials, direct labor, and manufacturing overhead

The materials price variance is usually the responsibility of the purchasing manager. The materials quantity and labor efficiency variances are usually the responsibility of production managers and supervisors.

x+y=90

x=30-y=x

step-by-step explanation:

if you understand you will get the answer

the correct answer is b. negative exponential growth.

step-by-step explanation:

you can tell it's an exponential function because it decreases rapidly then levels out and never touches the x-axis.

it is negative because the y-axis decreases as the x-axis increases.

therefore it is a negative exponential growth graph.

hope i !