Sporto Enterprises is considering the manufacture of a new type of golf ball. Each golf ball would sell for $3.75 and would require $1.75 in variable cost. In addition annual fixed costs associated with the project would total $64,000. Calculate (a) the breakeven point in units, (b) the breakeven point in dollars, (c) the operating income or loss at a sales volume of $112,500 and (d) the number of golfballs that must be sold to earn a profit of $80,000.