For the function shown in the table, which output is incorrect? y = 8x
x y
3 24 A
4 36 B
5 40 C
8 64 D
1. A
2. C
3. D
or 4. B

The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips. (a) what is the probability that a randomly selected bag contains between 1100 and 1500 chocolate chips, inclusive? (b) what is the probability that a randomly selected bag contains fewer than 1125 chocolate chips? (c) what proportion of bags contains more than 1225 chocolate chips? (d) what is the percentile rank of a bag that contains 1425 chocolate chips?

In a column proof the right column states your reasons

If a flying disk is 139 meters in the air and travels at an average of 13 m/s how long is it in the air