Direct Materials Variances

Alvarado Company produces a product that requires $10$ standard pounds per unit. The standard price is $$7\mathrm{.}00$ per pound. If $3,100$ units used $31,600$ pounds, which were purchased at $$6\mathrm{.}65$ per pound, what is the direct materials $($a$)$ price variance, $($b$)$ quantity variance, and $($c$)$ cost variance? Enter a favorable variance as a negative number using a minus sign and an unfavorable variance as a positive number.