Your locker combination has 3 numbers from 0 to 15 each number must be different how many locker combinations are there

An alien has just landed from the planet, iksnimak. he would like to leam how to add two fractions when thedenominators are the same. write a paragraph that explains to our alien friend, in your own words, the detailsabout how to add the fractions, how to change the result to a mixed number, and how to reduce the fractionpart. use this problem as your example: the two fractions are 5/8 & 7/8

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

I’m confused on how to work the pie charts