24+8 = 30
30 - 12 = 18
18-9 = 8
There are 8 cards left in the stack
Answer:
The answer is option 1.
Step-by-step explanation:
Firstly, you have to elaborate the expression :


Next you have to take out the common factors and factorize it :



Answer:
12 cm
Step-by-step explanation:
multiply 10 by .2
10 × .2 = 2
add 2 to 10
2 + 10 = 12 cm
Answer:
The percentage change is 140%
Step-by-step explanation:
Given
---- initial dimension
--- new width
--- new dimension
Required
The percentage increment
The length remains constant because only the width is extended.
The new area is:


Make L the subject

Substitute values for A and W


--- this is the length of the garden
Calculate the initial width:

Make W1 the subject



So, the initial area is:



The percentage change in area is:




Express as percentage

