CAN SOMEONE PLEASE HELP ME???

The value of the expression 16-^3/4 8 1/8 -6 6 1/40 1/64

Heather is riding a quadratic function that represents a parabola that touches but does not cross the x-axis at x=-6

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?