Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$12.5\times4.2$$

Evaluate

$52.5$

Show Solution

Factor

$\frac{3 \cdot 5 \cdot 7}{2} = 52\frac{1}{2} = 52.5$

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