23. write the following as an algebraic expression.
the cost of x compact discs if each compact disc costs $7.13.
the cost of x compact discs is $

For this case we have to:

x: It is the variable that represents the number of compact discs.

The cost function must be found considering that each disk costs $7.13. So:

Thus, to find the total cost of "x" compact discs (in $) we substitute the number of discs in the cost function.

answer: plz give a pic and answer choices so i can answer!

step-by-step explanation:

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl