3(2x^2+ax+b)=-6x+12x-15 what is the value of a and b

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.)

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68

Ade and abc are similar. which best explains why the slope of the line between points a and d is the same as the slope between points a and b?