If (x+30°) and (180°-2x) are vertically opposite angles . Find the value of x .

18 16 11 45 33 11 33 14 18 11 what is the mode for this data set

£100.80 divided by 14 equals 7.2 how would we put this as money

Right ∆abc has coordinates a(-7, 3), b( -7, 10), and c(-1, 3). the triangle is reflected over the x - axis and then reflected again over the y - axis to create ∆a'b'c'. which are the coordinates of vertex a'?