51. التي سجل 16 لاعبا للاشتراك في دروس التنس. ويخطط المدرب لاستخدام 50 كرة تنس لكل لاعب وامتلاك 200 إضافية كك عدد كرات التنس اللازمة للدروس

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of

Apack of gum would be considered a(n) necessity luxury item small ticket item unaccountable expense

You eat $0.85 for every cup of hot chocolate you sell. how many cups do you need to sell to earn $55.25