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Sagot :

ak1008

Answer:

The first one.

Step-by-step explanation:

The square root of 144=12

12*7/16=r5.25=21/4=rational

Answer:

[tex]{ \tt{ \sqrt{144} . \frac{7}{16} }} \\ \\ = { \tt{ \sqrt{144} \times \frac{7}{16} }} \\ \\ = { \tt{12 \times \frac{7}{16} }} \\ \\ = { \tt{ \frac{21}{4} }}[/tex]

Answer: 21/4, rational