1) 4. Recall that the cost per number of wristbands is: f(x) =
2x + 20, 0 < x < 50
x + 10, 50 < x < 100
0.5x,
X > 100
O to 50 wristbands
51 to 100 wristbands
over 100 wristbands
What is the difference in cost between one order of 200 wristbands, two
orders of 100 wristbands each, and four orders of 50 wristbands each?
I

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?

Measure of angles 31 (x+4) (3x+9) me

Someone me what is the area of this figure? 18m 18m 8m 16m