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Supplementary angles

Apackage of orgainc strwberries costs $1.50 while there in season and $2.25 when not in season what the percent increase

Ineed to know how to write question one in mathematical terms

Shannon mary and john earn a weekly allowance ahannon earns the amount that is 2/3 of what john earns mary earns an amount that is 1 2/3 of what johns earns 20 dollars a week who eaens the greatest allowance and who earns the least