Answer:
y = 3/2x
Step-by-step explanation:
The slope goes up by 3 and to the right by 2, using rise/run slope rule, then the slope is 3/2
By definition of conditional probability,
P(B | A) = P(A ∩ B)/P(A) = (13/25) / (13/20) = 20/25 = 4/5
$ 6.18 is what each pen costs