Answer:
Jim has 700 and wants 300 left. he can spend 400. 25 every weekend. divide 400 by 25 and you get 16. the answer is 16
Step-by-step explanation:
If a random sample of 20 persons weighed 3,460, the sample mean x-bar would be 3460/20 = 173 pounds.
The z-score for 173 pounds is given by:

Referring to a standard normal distribution table, and using z = 0.66, we find:

Therefore

The answer is: 0.2546
This requires us to find the number of permutations of 6 different bands taken 2 at a time:
Answer:
9x -2
Step-by-step explanation:
(7x + 3) + (4x - 1) - (2x + 4)
Distribute the minus sign
(7x + 3) + (4x - 1) - 2x - 4
Combine like terms
7x+4x-2x +3 -1-4
9x -2