Mark's blueberry muffin recipe calls for 4/6 cup of blueberries per batch. If she has 4 cups of blueberries, how many batches can Mark make?

What is the slope of the line (-7,2) (4,6)

What is the value of n in the equation -1/2(2n+4)+6=-9+4(2n+1)

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?