Which of the following is a geometric sequence?
a. 3, 7, 11, 15, 19
b. 4, 6, 10, 16, 26
c. 4, 16, 64, 256

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?

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

In angle pqr find the measure of