2.) The numbers 405 and 1960, written as the products of their prime factors, are 405 = 34 x 5 and 1960 = 23 x 5 x 79. Hence, find
(1) the greatest whole number which is a factor of both 405 and 1960,
() the smallest whole number that is divisible by both 405 and 1960.

Pls explain, tomorrow is my test I really need ur help

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]