A, B and D are already rational numbers, 0.4 itself is a rational number, two rational numbers make a product of rational number.
So A, B, D are the correct choices.
Are you sure it asks for rational numbers, not irrational number?
Answer:
(1, 0)
Step-by-step explanation:
360º is a full circle and is the same as 0º, so this is on the x-axis.
the y coordinate is 0
Since it's a unit circle on the x-axis the x coordinate is 1
(1, 0)
Answer:

Step-by-step explanation:
defition of slope(m) of a line:

A=(-1,-5)=(Xa,Ya) then Xa= -1 and Ya= -5
B=(3,-3)=(Xb,Yb) then Xb=3 and Yb= -3

Answer: C
Step-by-step explanation:
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2884 people practice a sport/club
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1339 people eat a snack
1133 people are on social media
...after school