Roger bought a pair of leather gloves that originally cost $30.00 on sale at a 30% discount. How much money did Roger save?
A.
$21.00
B.
$3.00
C.
$9.00
D.
$6.00

C, my friend. Trust the BlueDragon

Step-by-step explanation:

30% of $30 is 9, $30-$9 is $21.00

He saved $9.00

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

111

step-by-step explanation: