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What is the weight of this box? A. -50 N B. 0 N C. between 0 N and +50 N D. more than +50 N

To solve the system of equations below, pedro isolated the variable y in the first equation and then substituted it into the second equation. what was the resulting equation? { 5y=10x {x^2+y^2=36

21 a stick 7 inches long is broken into two pieces, so that one piece is twice as long as the other one. how long are the two pieces?

Charlie tosses five coins.what is the probability that all five coins will land tails up.