Sales revenue of $110,000 will achieve breakeven when the contribution margin is $30,000 and the fixed costs are:

the investment was $14,174.196

explanation:

a lump sum means that the father of the example made one deposit and leave it be.

we need to know the value of a capital that generated at 4.05% per year during 28 years the sum of $48,613.24

now clearing the formula to solve for capital we got:

and we reach the answer investment = $14,174.20

answer; situational irony;

answer$22,000 ;