David's cell phone company charges $0.45 for| each text message plus a monthly fee of $50.00. he owes $91.40. write and solve an equation to find the number of text messages did david has?

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°

hello,

as   long as they add up to 180 its correct.