Answer:
y = x + 5
Step-by-step explanation:
Slope = - 1
Slope of the perpendicular line = 1
Point (2,7)
(b) y-intercept= 7 - (1)(2)
= 5
The probabilities of knocking down zero, one, and two pins are

and

, respectively. The total probability of knocking down at most two is thus

, or

.
Answer:
6 is the answer hope it helps:)