HELP!! need answers for E and F! Please use the correct theorem! Example: corresponding etc

Will give brainliest to first answer!!!

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

Dylan and dusty plan to take weekly surfing lessons together. if the 2-hour lessons are $20 per person and they plan to spend $100 each on new surfboards, what is the maximum number of lessons the two can take if the total amount spent for lessons and surfboards is at most $480?

Ineed ! the person who answers and shows their work on they got the answer first will be marked the !