The sum of a geometric series with seven terms is 13,116, and the common ratio is r = 3. Find the first term.

What is the value of the digit 1 in the number 13?

Problem fathi wants to print out a pdf document that is 48 pages long. to save paper, he decides to print on both sides of each sheet and to print two pages on each side of the sheet. how many sheets of paper will he need?

The focus of parabola is (-4, -5), and its directrix is y= -1. fill in the missing terms and signs in parabolas equation in standard form