Four times the sum of a number and 3 in number form

-3

Step-by-step explanation:

so first you are going to write it as an equation

0= 4(x+3)

next you are going to use the distributive property

0=4x + 12

then solve for x

x=-3

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°