Anton needs 2 boards to make one shelf one board is 890 cm long and the other is 28. 91 meters long what is the total length of the shelf

Afitness center has 2 membership plans one has a low dollar sign up fee of 15 dollars and costs 38 dollars per month to join. a second plan has a higher sign up fee of 78 dollars but a lower monthly fee of 31 dollars for what number of days of the month is the coat the same