1: Find the total cost of 25 pens and 75 books if each pen costs GH¢0.20 and each book
costs GH¢0.30.
ITI​

0.2 x 25 = 5

0.3 x 75=22.5

22.5+5=27.5

Step-by-step explanation:

a: 1/6, j: 1/4

step-by-step explanation: you are welcome

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