Crystal measures the mass of a beaker containing ice cubes and finds that its mass is 130 g. After an hour, the ice cubes have melted, and Crystal decides to take another measurement. What will be the mass of the beaker and the water?

130g

Step-by-step explanation:

Change of state from Solid to liquid doesn't affect the mass of the crystals.

The mass remains the same

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%

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step-by-step explanation: