I might be wrong but I think it is 50 .
Answer:
9 correct
Step-by-step explanation: 60% of 15 = 9
If 21 Ib on moon=126 IB on earth
25 Ib on moon=?
25/21*126=150
Therefore the astronaut will weigh 150Ib on earth
The other factor is eight because 9 multiplied by eight is 72 and a negative times a positive is a negative
y = mx + b
m: slope
b: y-intercept
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3x + 9y = 18
-3x -3x
9y = -3x + 18
/9 /9
y = -3/9x + 2 OR y = -1/3 + 2
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m = -3/9 OR -1/3
b = 2
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