#1 7.1 years old
#2 7.8 years old
#3 87.4
#4 74
#5 7.4
Answer:

Step-by-step explanation:
f(x) = 5x - 9 and g(x) = x+9/5 are inverses of each other.
<u>________________</u>
Answer:A
Step-by-step explanation:
Answer:
It's just like reflection
Step-by-step explanation:
Answer:
Probability is: 
Step-by-step explanation:
From a deck of 52 cards there are 26 black cards. (Spades and Clubs).
Also, there are 26 red cards. (Hearts and Diamonds).
First, we determine the probability of drawing a black card.
P(drawing a black card) =

Now, since we don't replace the drawn card, there are only 51 cards.
But the number of red cards is still 26,
∴ P(drawing a red card) =

Now, the probability of both black and red card =

Hence, the answer.