In a class of 30 students, 16 have a brother and 7 have a sister. There are 11 students who do not have any siblings. What is the probability that a student has a sister given that they have a brother?

Under normal conditions, 1.5 feet of snow will melt into 2 inches of water. during a winter season high in the mountains, 301 feet of snow fell. how many inches of water will there be when the snow melts?

Kyle and elijah are planning a road trip to california. their car travels 3/4 of a mile per min. if they did not stop driving, how many miles could kyle and elijah drove in a whole day? ? 1 day = 24 hours. plzzz write a proportion i will give you 100 points

If the value of cos330°is√3/2 then find cos 165°.