The seats in a theatre are priced so that the seats nearest to the stage are the most expensive and the price decreases each row back from the stage. In row A (nearest to the stage) the seats are $50 each. In row B the seats are $47.50. In row C the seats are $45 etc. a) What is the formula for the nth term in this arithmetic sequence?

Maaaaagic    2   07.02.2021 11:07    2