Help! I don’t know how to work with slopes

sum= when you add is how much the whole amount is

distance= when you use angles and it means how far it goes

step-by-step explanation:

3; 9 is 8 to -4

step-by-step explanation:

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°