The answer to this problem

If olu is twice as old as funmi if the sum of their ages is 60 how old is olu

Ameteorologist is studying the monthly rainfall in a section of the brazilian rainforest. she recorded the monthly rainfall, in inches, for last year. they were: 10.4, 10.3, 11.7, 11.1, 8.0, 4.4, 2.6, 1.8, 2.5, 4.4, 7.3, 9.5 fill in the missing values in the formula. what is the variance?

(-y to the power of 2 - 4y- to the power of 2 -6 y +3)