What is the real part of the complex number when 4 plus 5i is multiplied with 2 minus i? 3 + 6i
13 + 6i
13
3
6
6i

Find the value of the variable and the length of each secant segment

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?

The lengths of all sides of a triangle are integers when measured in decimeters. one of the sides has length of 1 dm and another of 3 dm. find the perimeter of the triangle.'