please help me with this

Answer:
Step-by-step explanation:
sum of ∠QPR and ∠RPS is 180 as ∠QPS is a straight line
6x + 11 + 7x + 143 = 180 {add like terms}
13x + 154 =180
13x = 180 - 154
13x = 26
x = 26/13
x = 2
∠RPS = 6x + 11 = 6*2 +11 = 12 + 11 = 23°