Michael is 3 times as old as brandon. 18 years ago, michael was 9 times as old as brandon.
how old is brandon now?

Brandon is 24, Michael is 72.

Step-by-step explanation:

Let m represent Michael

Let b represent Brandon

Then,

m = 3b                    <"Michael is 3 times as old as Brandon."  

m - 18 = 9(b - 18)    <"18 years ago, Michael was 9 times as old as Brandon."  

3b - 18 = 9b - 162

-18 = 6b - 162

144 = 6b

Michael is 3 times as old as Brandon. Also, 18 years ago, Brandon would have been 6 and Michael would have been 54 meaning Michael was 9 times as old as Brandon 18 years ago.

54

step-by-step explanation:

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%