What is the sum of the geometric sequence 4, 16, 64, … if there are 8 terms? 21,845 43,690 65,535 87,380

In trapezoid efgh, m∠hef=(4x2+16)∘ and m∠gfe=(5x2+12)∘. find the value of x so that efgh is isosceles.

The number of lattes sold daily for two coffee shops is shown in the table: lattes 12 52 57 33 51 15 46 45 based on the data, what is the difference between the median of the data, including the possible outlier(s) and excluding the possible outlier(s)? 48.5 23 8.4 3

Need this asap if anyone can i would be very grateful. if you could show workings that would really