Lacey designs dresses. She can keep designing casual dresses that bring $65 but are easy to sell, or she could design formal gowns that sell for $500 but must be high fashion. She takes a risk on formal
gowns
a. The opportunity cost is

$65

Step-by-step explanation:

opportunity cost of the next best option forgone when one alternative is chosen over other alternatives

By making formal gowns, she is forgoing the opportunity to earn $65 making casual dresses. this is her opportunity cost

the answer would be 1 1/72

step-by-step explanation:

you can rewrite the equation by separating the parts and then solving individually:

10-9=1

1/8 - 1/9=

find l c d and then combine:

1 1/72