To improve productivity, a local bakery rents a machine that mixes, partitions, and then bakes dough for a variety of pastries. The machine costs the business $2,500 per month to rent and operate, regardless of output. The cost of renting the machine is classified as .(1 point) A. marginal revenue
B. a variable cost
C. a fixed cost
D. marginal cost

Which sentence has a pronoun in the nominative case? a) we aren't sure if the group is going white-water rafting or not. b) dad refused to give the keys to her because of her disrespectful attitude. c) the radar could not see it because the plane had been covered with radar-resistant paint. d) diana wanted to go out with them, but her mother was resistant because of their reputation.