HELP ME PLZZZ ASAP! Tyler’s work is incorrect. Explain the error he made.

Tyler is simplifying the expression 6 − 2 + 5 + 4. Here is his work:

6 − 2 + 5 + 4

(6−2) + (5+4)

4 + 9

13

I don't think he made an error.

Step-by-step explanation: This is because he got the right answer

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°