-7 + - 20 please help me i really don't understand

-27

Step-by-step explanation:

-7 + - 20

let's not forget that a + and a - is equal to a - therefore all the question really says is ...

-7-20

which is now easier to do and is equal to

= -27

Hope this helped you, have a good day bro cya)

zero slope

Step-by-step explanation:

it is where the line goes left to right

you know it isn't undefined because that goes straight up and down