Answer:
2
Step-by-step explanation:
4n-2n=4
2n=4
n=4/2
n=2
Answer:
20 5/6 ft
Step-by-step explanation:
5 3/5 = 28/5
1 4/5 = 9/5
V = l * w * h
210 = l * 28/5 * 9/5
210 = l * 252/25
multiply both sides by 25/252
5250/25 = l
Reduce
20 5/6 = l
20 5/6 ft
Answer:

Step-by-step explanation:
P(A|B) = P(A and B) / P(B)
Total number of cards = 52
a)
Let A denotes the event that the card is a diamond and B denotes the card is red.

b)
Let A denotes the event that the card is red and B denotes the card is diamond.

c)
Let A denotes the event that the card is nine and B denotes the card is red.

d)
Let A denotes the event that the card is a king and B denotes the card is a face card.

Answer:
22 1/2
Step-by-step explanation:
1/4×6=1 1/2
3×7=21
21+1 1/2=22 1/2
A is poor
B is good
C is marginal