Why were americans surprised by the tet offensive?

a. they had expected the offensive to take place months later.
b. the johnson administration had led them to believe that the enemy was not capable of launching a massive attack.
c. they had expected the offensive to take place months earlier.
d. the communists had promised not to launch an offensive.

Marya wants to factor the polynomial 36x^3 -22x^2 - 144x. which term can she add to the polynomial that would not change its grestest common factor? check all that apply

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?