Answer:
The ans is 15
Step-by-step explanation:
Answer:

Step-by-step explanation:
When two or more quantities have the same exponents, their bases can be multiplied together.
Step-by-step explanation:
Given,
Perimeter of the rectangle = 200cm
Breadth of the rectangle = 10 cm
Therefore, by the problem
=> 2(l+b) = 200cm
=> 2(l + 10) = 200cm

=> l + 10 = 100
=> l = 100 - 10
=> l = 90
<u>Hence, required length othe rectangle is 90 cm (Ans)</u>
Answer: 220
Step-by-step explanation: Use distributive propetry and PEMDAS to solve.