How can you find 40% of 150 using mental math? Explain

Answer 1

I DON"T KNOW, I NEED THE ANSWER

Answer 2

.4*150 is the same as 4*15 which is 2*30 = 60
or
10%would be 15 and 15*4 =60

Answer 3

dude u made me fail my math quiz-

Answer 4

I don´t know!!!!!!!!!!!!!!!!!!!!!