PLEASE HELP AND ANSWER FOR BRAINLIEST PLEASE EXPLAIN
Answer:
7
Step-by-step explanation:
The three angles put together forms a straight line of [tex]180^{o}[/tex]
(5p+2) + 90 + (7p+4) = 180
combine like terms
12p + 96 = 180
12p = 84
p = 7