Answer:

Step-by-step explanation:

When there is a ( + ) in front of an expression in Parentheses, there is no need to change the sign.
That means the expression remains the same.
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Move 5/3 to right hand side and change it's sign
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While performing the addition or subtraction of like fractions , you just have to add or subtract the numerator respectively in which the denominator is retained same.
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Calculate
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Divide -39 by 3
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Hope I helped!
Best regards!!
3.5 x 4.5 x 2 is how you find the answer to this
World War I, often abbreviated as WWI or WW1, also known as the First World War or the Great War, was an international conflict that began on 28 July 1914 and ended on 11 November 1918
When a pair of figure is similar, it means the lengths have a scale factor. So we have to find what times 8 gives 16, which is the length if the bigger rectangle. 8×2=16, so we have to use the scale factor, which is 2, to multiply by the other length of the rectangle. 2×2=4, so x=4.
Next question is basically like the first one, but you have to divide instead. 12÷4=3, and so 8×3=24, so y=24. 18÷3=6, so x=6. Last one, 6÷4= 1.5. 8÷1.5=5.3 and 7÷1.5=4.6, so x=4.6 and y=5.3
It would be more simple if you've given the picture. But I think it doesn't matter. If he use twice enlargment than he gets 200%. I've counted it and get <span>146% and 136%. Try to check it by yourself if I'm wrong.</span>