Arrange the following steps in the correct order to find the sum of the first 50 terms of an arithmetic sequence when you are given the general term formula $a_n = 3n - 4$.

A corporate retirement plan provides an annual contribution that increases each year following an arithmetic sequence. If you are given the general term formula $a_n$ and asked to find the total contribution over the first 20 years using the sum formula S_n = rac{n}{2}(a_1 + a_n), which of the following represents the two values you must first calculate from the general term formula?

A logistics company forecasts its daily package handling capacity to grow arithmetically according to the formula $a_n = 3n - 4$, where $n$ is the day number. To calculate the total capacity over the first 50 days, an analyst uses the arithmetic series sum formula S_n = rac{n}{2}(a_1 + a_n). Match each variable in the formula with its correct meaning in this specific scenario.

A corporate financial analyst uses the formula $a_n = 3n - 4$ to project the monthly revenue growth of a startup. To find the total revenue for the first 50 months using the arithmetic series sum formula S_n = rac{n}{2}(a_1 + a_n), the analyst must first determine the values of $a_1$ and $a_{50}$ by substituting $n = 1$ and $n = 50$ into the general term formula.

A corporate financial analyst is calculating the total projected revenue over a set number of months. The monthly revenue follows an arithmetic sequence with a given general term formula. To find the total using the arithmetic sum formula $S_n = \frac{n}{2}(a_1 + a_n)$, the analyst must first substitute values into the general term formula to determine the sequence's first term and its ____ term.