the company manufactured 3,000 helmets, using 2,100 kilograms of plastic. The plastic cost the company $15,960.

each helmet should require 0.62 kilograms of plastic, at a cost of $8.00 per kilogram.

1. calculate standard quantity of kilograms of plastic (SQ) that is allowed to make 3,000 helmets?

2. calculate standard materials cost allowed (SQ SP) to make 3,000 helmets?

3. calculate materials spending variance?

4. calculate materials price variance and the materials quantity variance?