If sin x equal to plus or minus root 3 by 2 then what is sin x by 2

Find the balance at the end of 4 years if 1000 is deposited at the rate of

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%

There are 93 calories in a small candy bar how many calories are ther in a half dozen small candy bars?