Which of the following numerical expressions may represent the probability of a simple event?

a) 1/2
b) 1/2 + 1/6
c) 1/6 + 1/6
d) 1/2 * 1/6

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

The ratio of men to women working for a company is 4 to 5 . if there are 90 women working for the company, what is the total number of employees?

Need this asap if anyone can i would be very grateful. if you could show workings that would really