C is likely the best answer here.
Answer:
where are the options ..... to select
You should have the percentage of tip based on the service that you received.
Then you multiply the percentage of tip by the amount of money that you have to pay for what you bought.
Answer:
a. Dr. Franklin wishes he were the one who had invented the new web application.
b. If he were willing to submit the proposal, we might win the bid.
Explanation:
The subjunctive mood is when we're talking about wishes, doubts, and possibilities, in this case, we have two examples, where Dr. Franklin wishes to invent the new web application, and the other sentence is a possibility because he believes that they can win the bid. The last example is an affirmation.
From what my teacher taught us it would be c.