here triangles EBC and EKC are similar by ASA rule.
So angle BEC = angle KEC
7p+7=37-3p
adding 3p to both sides
7p+3p=37-7
10p=30
dividing both sides by 10
p=3
Answer is B. p=3
I'm not to well with this but try using photo math also they will show you exactly how to solve it
What she ate is
(13/4)×(5/7)
65/28 pounfs of candy