Real and imaginary part of z in z=-19i+14

Rai compares two cable plans from different companies. which equation gives the correct value of mm, the number of months for which plans a and b cost the same?

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'