Jack is now seven times as old as James. In 5 years, Jack will be five times as old as James. How old is James now?

Answers: 70 55 10

What is the approximate probability that the student will choose to participate in two teams

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Ben got a part-time job. his mom said he must save at least two-thirds of his weekly paycheck, and can spend the rest. if he wishes to spend $40 this week, how much must he make?

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0.0025 cm << in scientific notation

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