Question

http://prntscr.com/8g99k9

Answer 1

@Farmerboy_813

Answer 2

@texaschic101

Answer 3

@jazzyspazzy

Answer 4

@kevin_bridges

Answer 5

@GuitarNerd2015

Answer 6

@KAKES1967

Answer 7

It should be -
positive
negative
negative
positive

I usually follow these rules:

positive x positive = positive
Negative x positive = negative
positive x negative = negative
negative x negative = postitive