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Marley journey

By what percent will the product of two numbers change, if the first number increases by 70%, while the second number decreases by 40%.

Did the universe cool off or get hotter as it expanded after the 'big bang"?

Many students are as or more stressed out than their adult parents/guardians. do you believe this is true or not? use evidence from the article to answer this question is claim-evidence-reasoning format.