Dinner at the restaurant was $90. The server was tipped 15% (percent). What is amount of the tip?
What is the total cost for dinner?

I’m going to infer you said parallel.solve for yy= -1/2x+7/4lines that are parallel have the same slope, different y intercept.so we know m is -1/2then from there solve for y intercept.

Main idea on left, details on right

(x) - (y) = (1 + 4i)

(3 + 6i) - (2 + 2i) = (1 + 4i)