Slove for x with variables. wx - y + y + c = z please help if i get this right i get extra credit

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

"princess tower" in dubai is considered the world's tallest residential building, towering to 1 0 1 101 floors! t ( n ) t(n) models the number of tenants living on floor n n of the tower. what does the statement t ( 2 0 ) = t ( c ) t(20)=t(c) mean?

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then