Rolf's Golf store sells golf balls for $28 per dozen. The store's overhead expenses are 27% of cost and the owners require a profit of 20% of cost.

a. How much does Rolf's Golf store buy the golf balls for?

$

per dozen

Round to the nearest cent

b. What is the price needed to cover all the costs and expenses?

$

Round to the nearest cent

c. What is the highest rate of markdown at which the store will still break even?

%

Round to two decimal places

d. What markdown rate would price the golf balls at cost?

%

Round to two decimal places