The answer is 18
-7^2+4(-7)-3
49+(-28)-3
21-3
18
Answer:72 are boys.
Step-by-step explanation:
40%of 180 is 72.
Answer:
Step-by-step explanation:
Use the formula to find the z-score, then go to the table that will give you the probability that the value is less than this z-score.

The probability that the value lies to the left of 1 on a standard bell curve is 84.1345%, or 84%, the third choice down.
Answer:
40 steps downwards
Step-by-step explanation:
Answer:
the answer is B
Step-by-step explanation:
it makes the most sense