Taya wants to build a square skating rink in her backyard the rink is 64ft what is the length of one side

64ft

Step-by-step explanation:

since all sides of a square and the same and equal then all the dimensions will be 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%