Rubin has 6 rolls of pennies containing 50 coins each, 5 rolls of nickels
2 answers:
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Answer:
=x
Step-by-step explanation:
10^2+21^2=x^2]
100+441=x^2
541=x^2
=x
Your problem did not have an operator between the x and 1 so I did it as subtraction and addition. There was no answer choice -3 so D x=-9 is the answer
