Question

Plz help asap THANK YOU!!

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Answer 1

1. twice the sum of nine and twenty is 2x(9+20)

2. two more than the sum nine and twenty is 2+(9+20)

3. the sum nine and twenty decreased by two is (9+20)’/,2

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Answer 2

The mathematical expression for each description was written.

What is BODMAS rule?

BODMAS rule is used to remember the order of operations while solving expressions. It stands for B - Brackets, O - Order of powers or roots, D - Division, M - Multiplication A - Addition, and S - Subtraction

So,1) Twice the sum of 9 and 20 = 2(9+20)

2)2 more than sum of 9 and 20 = 2+(9+20)

3)The sum of 9 and 20 decreased by 2 = (90+20)-2

Thus, The mathematical expression for each description was written.

To get more about BODMAS visit:

https://brainly.com/question/24383445