How do you find the vertex of y=4(x-2)^2 +1

Evaluate the expression for the given value of the variable 7a - 4a for a =8

50 people men and women were asked if they watched at least one sport on tv. 20 of the people surveyed are women, but only 9 of them watch at least one sport on tv. 16 of the men watch at least one sport on tv. make a a two-way table and a relative frequency table to represent the data.

Given the median qr and trapezoid mnpo what is the value of x?