$($A$)$ Breakeven Analysis $F{C}_A+(V{C}_A^{**}Q)=F{C}_B+(V{C}_B**Q)$

A buyer has the option of buying a component from two suppliers. The fixed cost and variable cost of supplier A are $$2,500$ and $$5\mathrm{.}60$ per unit, respectively. The fixed cost and variable cost of supplier B are $$5,800$ and $$2\mathrm{.}40$ per unit, respectively. The total requirement of the component is $12,500$ units.

$(1$a$)$ What is the breakeven quantity?

$(1$b$)$ What is the total cost at breakeven quantity?

$(1$c$)$ What is the total cost of supplier $A$ at the quantity needed?

$(1$d$)$ What is the total cost of supplier B at the quantity needed?

$(1$e$)$ If the total demand is $800$ units, which supplier should the company buy from? Why?