Fill in the missing amounts in each of the eight case situations below. Each case is independent of the others.

Required:

a$.$ Assume that only one product is being sold in each of the four following case situations:

b$.$ Assume that more than one product is being sold in each of the four following case situations:

Required $A$

Assume that only one product is being sold in each of the four following case situations: $($Loss amounts should be indicated by

a minus sign.$)$

Required $B$

Assume that more than one product is being sold in each of the four following case situations: $($Loss amounts should be indica

sign.$)$