Given the variance for data set is 1.20, what is the standard deviation?

Listed in the table is the percentage of students who chose each kind of juice at lunchtime. use the table to determine the measure of the central angle you would draw to represent orange juice in a circle graph

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?