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:
3.42
Step-by-step explanation:
41/12 is 3.42
Answer:
<h2>17/35</h2>
Step-by-step explanation:
We need to get all the fractions with a common denominator before we can solve the problem.
The only fractions that have a common multiple are 1/7 and 3/21, so we'll add these first and then add 1/5.
1/7 = 3/21
Add

6/21 = 30/105
1/5 = 21/105

Simplify

<h3>
ANSWER: 17/35</h3>
I'm always happy to help :)
Answer:
(x+3)(x+5)
Step-by-step explanation:
Number 4. will be a. because if you do 7*9=63*10=630.