**Question 1:**
Solve: ${\left(\frac{9}{25}\right)}^{\frac{1}{2}}+{\left(\frac{16}{25}\right)}^{\frac{1}{2}}-\sqrt{\frac{9}{25}+\frac{16}{25}}$

**Question 2:**
Solve: $\sqrt{0.09}+\sqrt{0.81}-\sqrt{0.49}$

**Question 3:**
Which of the following sets of numbers are the factors of $129$
?

**Question 4:**
Which of the following sets of numbers are the factors of $136$
?

**Question 5:**
Which of the following sets of numbers are prime numbers?

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