In 1982, the US Mint changed the composition of pennies from all copper to zinc with copper coating. Pennies made prior to 1982 weigh 3.1 grams. Pennies made since 1982 weight 2.5 grams. If
you have a bag of 1374 pennies, and the bag weighs 3846.6 grams, how many pennies from each
time period are there in the bag?
Number of pennies made prior to 1982:
Number of pennies made after 1982:

answer: the correct option is d.

explanation:

it is given that the triangle j'k'l' shown on the grid below is a dilation of triangle jkl using the origin as the center of dilation.

from the given graph it is noticed that k(4,8) and k'(2,4). let origin is defined by o and scale factor is defined by k, then

    (1)

distance formula,

put these values in equation (1).

therefore scale factor is     and option d is correct.

i believe its the last graph

i dont understand the question