According to the fundamental theorem algebra, how many roots exist for the polynomial function? (9x+7)(4x+1)(3x+4)=0

What is sin 7x/4 ? i need on this urgent trig

Arestaurant offers a $12 dinner special that has 5 choices for an appetizer, 12 choices for an entrée, and 4 choices for a dessert. how many different meals are available when you select an appetizer, an entrée, and a dessert? a meal can be chosen in nothing ways. (type a whole number.)

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