0.06 x 0.5 = 0.03 (I think that is what you're asking)
Answer:
Step-by-step explanation:
If you wanna decrease the number 10 by 90%, It's just 9. You simply need to multiply a/100 at the number you try to decrease by a%.
The expressions are simplified to 2x and 
<h3>How to simply the expressions</h3>
1.
Given the expression;

Let's factorize the numerator;

Factor the common terms, we have;
2x
2. 
Find the Lowest common multiple

expand the brackets


collect like terms

Divide common terms

Thus, the expressions are simplified to 2x and 
Learn more about algebraic expressions here:
brainly.com/question/4344214
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Answer: 3.6
Step-by-step explanation:
½bh = 6.12
½ × 3.4 × b = 6.12
b = 6.12/ 1.7