What is the value of x?
15
20
60
180

x = 20

Step-by-step explanation:

The triangle has 2 equal sides and is therefore isosceles, hence

The base angles are congruent, thus

3x = 60 ( divide both sides by 3 )

x = 20

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%