Twenty-eight people in student council are running for the offices of president and vice-president. In how many different ways can those offices be assigned? 378
55
756

756

Step-by-step explanation:

The president can be elected in 28 different ways. After a student is elected president, there are 27 students left to elect a vice president from. So there are 28 x 27 = 756 different arrangements.

2 5/8 is the final answer! : )

for any of you who need the translation here it is

step-by-step explanation:

find the angular size of the equatorial radius of the earth, if the horizontal parallax of the sun