Can someone help me? . Which of the following expressions represent 15% tip on a $20 meal? Which represents the total bill? Select all that apply. Explain your reasoning for the choices you select. [4 points] 15 * 20

20 + 0.15 * 20

1.15 * 20

15/100 * 20

Jackson drew 4 hearts and 29 circles. what is the ratio of circles to all shapes?

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?

If a company produces x units of an item at a cost of $35 apiece the function c=35x is a of the total production costs