El décimo segundo término de una sucesión aritmética es 71 y su razón es cinco. Encuentre el primer término.

This is different from the first one can someone me

Pyotr tchaikovsky sporting goods operates on a 45% overhead based on the selling price, which results in an overhead of $65.34 on the newest version of an air hockey game set. if the air hockey game set costs pyotr tchaikovsky sports $49.32, find the selling price, the markup, and the net profit.

In the geometric progression –3, 12, −48… what term is 3,072?