$349.30 because u multiply the cost of 1 case times 14 the # of cases
Y=3x
It costs $3 per movie (x)
The probability is 0.1429.
The probability that the first person chosen is a boy is 5/7. The probability that the second is a boy is 4/6; the third, 3/5; and the fourth, 2/4. Both the numerator and denominator decrease every time, because you lose a boy to choose from and you lose a student to choose from as well. This gives us:
5/7(4/6)(3/5)(2/4) = 120/840 = 0.1429.
P= 11.2
Not sure why you took p out of the equation.
2.6(5.5p-12.4)=127.92
14.3p - 32.24 =127.92
14.3p = 160.16
P = 11.2
