Answer:
21
Step-by-step explanation:
To find the mean, add up all the numbers
15+15+25+29 =84
Divide by the number of numbers
84/4 = 21
Answer:
6 times
Step-by-step explanation:
1/9 chance you get the orange marble. If you pick 54 times, you can expect to get the orange marble 6 times.
Answer:
5/12
Step-by-step explanation:
You have to make it a common denomator and then subract until equeal.
Express<span> the prime </span>numbers<span> 7, 15, and 261 as the </span>difference of two squares