Melissa wrote this expression to describe the number of pencils she used during the school year.  which situation could be described by this expression?   a. melissa knows she used 15 fewer pencils this year. she does not know how many she used last year.   b. melissa knows she has 15 pencils left. she doesn't know how many she started with.   c. melissa knows that she started with 15 pencils. she does not know how many pencils she used.   d. melissa knows she has 15 pencils left. she used half of her pencils.

constant of proportionality = 3 and the equation is c = 3p.

step-by-step explanation:

c = kp   where c = amount of caffeine in mg., p = oz of pepsi and k is the constant of proportionality.

substituting the values given:

24 = 8k

k = 3.

the same value of k will be obtained if we substitute the other given values.

both the histogram and the stem and leaf plot will visually show how many shoppers were of various ages within each range of data.   the histogram does not give us the specific ages of these shoppers unlike the stem and leaf plot.a histogram does not give us a true range of the data because we do not know exactly how old the shoppers were. a stem and leaf plot will give exact ages, so we can determine the exact range along with all measures of center and the others measures of center.   with the histogram, we cannot find any of these.

step-by-step explanation:

i know the point slope is y= 1/11x-46/11