Answer:
7:9
Step-by-step explanation:
Just divide 35 and 45 by 5.
Answer:

Step-by-step explanation:
<h2><u>Lesson : Reducing by factors:</u></h2><h2><u /></h2>
Given :


When you have to reduce a number by a certain factor, you must divide the area with the amount that it is reducing from, therefore,


3^n=27
Solve Exponent.
3^n=27
log(3n)=log(27)(Take log of both sides)
n*(log(3))=log(27)
n=log(27) / log(3)
n=3