Answer:
7.5%
Step-by-step explanation:
Two events and each has the probablity of occuring 0.25 and 0.30, the probability of them occuring at the same time is 0.25*0.30 = 0.075 = 7.5%.
80
720/P = 9/1
Cross multiply.
9P = 720
P = 720/9
P = 80
$-19.35 or -19.35 aprox
12
4*x-9=2x+15
4x-9=2x+15
-2x -2x
2x-9=15
2x=24
x=12