In a class of 18 students, 6 have a brother and 7 have a sister. There are 5 students who do not have any siblings. If 5 students are picked at random to represent the class for a sibling talk show, what is the probability that all of them have a brother?

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

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour

hi how are you doing today? if you ever need just tell me

step-by-step explanation:

answer is 8 r5

step-by-step explanation: