Answer:
40 min
Step-by-step explanation:
his sister can do it twice as fast so the boy does 1 and the sister does 2. he will do 1/3 of the work and it will take 1/3 of the time
19-7 equals 12. 12 times -6=-72. Sara’s number is 7
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the answer is x is equal to -4
x=-4
