A restaurant budgeted to sell 500 meals for $20 each in May. It actually sold 480 meals at an averag $19 each. a. How much is the Static-Budget Variance? a $880 U Ob. $880 F Oc. $480 F Od.$480 U Oe. 400 F Of 400 b. How much is the Flexible-Budget Variance? Oa. $880 U Ob. $880 F Oc. $480 F Od $480 U Oe. 400 F -Of. 400 c. How much is Sales-Volume Variance? Oe. 400 F Of. 400 Od $480 U Oc. $480 F Oa. $880 U Ob. $880 F