how do you solve this ?

-thank you

Sitka Industries uses a cost system that carries direct materials inventory at a standard cost. The controller has established these standards for one ladder (unit): Sitka Industries made 2,900 ladders in July and used 8,500 pounds of material to make these units. Sitka Industries bought 15,600 pounds of material in the current period. There was a $250 unfavorable direct materials price variance. Enter all amounts as positive numbers. A. How much in total did Sitka pay for the 15,600 pounds? Amount paids B. What is the direct materials quantity variance? Direct materiais quantity variance \$ C. What is the total direct materials cost variance? Total direct materials cost variance $ D. What if 9,200 pounds were used to make these ladders, what would be the direct materials quantity variance? Direct materials quantity variance \$ E. If there was a $350 favorable direct materials price variance, how much did Sitka pay for the 15,600 pounds of material? Amount paid \$