15 x 3= 45 so therefore 45 is the length hope that help!
Answer:
400
Step-by-step explanation:
200+ 10 + 6= 216
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Answer:
7, -5, 2/3, 5.79
Step-by-step explanation:
rational numbers are numbers you can put in fraction form.
is not a perfect square, therefore you cannot put it in fraction form.
is an imaginary number. Rational numbers are in the Real Numbers category, so it is not a rational number.