Question

Bert decided to start exercising. The first day he jogged for 25 minutes. The next day he wanted to jog for 4 minutes more than the previous day. He wanted to continue increasing by the same amount like this for every one of the 30 days in April.
Write an explicit formula to find the number of minutes that Bert ran on any day in April.

Answer 1

25 + 4x where x equals the number of days