What is the range of the following data?

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​ 7 , 5 ,9 , 10 , 1 , 2 , 2 , 8

There is a spinner with 14 equal areas, numbered 1 through 14. if the spinner is spun one time, what is the probability that the result is a multiple of 2 or a multiple of 5?

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)