suppose a lawn-mowing business has a mower for which it paid $1000 and workers for which they pay $10 per hours. Suppose each mower can mow a lawn per hour.

a. their total fixed cost is 10$ per lawn mowed

b. their total fixed cost is 1000$/ lawns mowed.

c. their variable cost per lawn is $10 + $1000/lawns mowed

d. their total fixed cost is $ 1000