A number plus 1/3 of the number can be expressed as

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?

What is the slope of the line that has an equation of y equals x -3

What is the equation of the line that passes through (-3,-1) and has a slope of 2/5? put your answer in slope-intercept form