A bus contains 32 students, and 18 of these students are girls. If a student is chosen at random, what is the probability that the chosen student is a boy? A. 7/16
B. 7/8
C. 18/32
D. 9/16

t = 3

step-by-step explanation:

put t = 3 in this expression :

(3²-1)(3²-2)(3² - 3)(3² - 4) = 8×7×6×5 = 56×30 = 1680

i got 86 for this

hope this !

if you need an explanation just ask

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons